Answer:
21 quarters and 21 dimes
Step-by-step explanation:
21 quarters = 5 dollars and 25 cents
21 dimes = 2 dollars and 10 cents
add together and you get the total
21 quarters and 21 dimes
determine whether each ordered pair is a solution of the given equation
x=3;(3,-1),(4,3)
Answer:
(3,-1) is a solution but (4,3) is not a solution
Step-by-step explanation:
You simply look to see if x in both ordered pairs are 3 since you are given the equation x=3 then x needs to equal 3 for it to be valid
What does the slope represent in this scenario?
Answer:
Then change in time divide by the change in Temperature
One city has a population of about 2,840,000 people. Another city has
about 3,120,000 people. About how many people live in both cities?
Answer:
5,960,000
Step-by-step explanation:
Population in one city= 2,840,000
Population in another city= 3,120,000
Population living in both cities= 2,840,000 + 3,120,000 = 5,960,000
Which equation is true when the value of x is -12
Answer:
Which equation is true when the value of x is -12 HERE YOU GO!!
Step-by-step explanation:
tricky ... let's see ...
I notice that if we subtract xy from both sides we get
7x + xy - xy = xy - xy + 21
then
7x = 21
and
x = 21/7 = 3
so there is only one value of x that satisfies the equation
x = 3
Going back to the original equation we see that any value of y will satisfy the original equation
we can see this by rearranging things:
7x + xy - xy = 21
here, I have performed the subtraction of xy on the right side as above, but have left the left side undone
(so we don't lose the presence of y)
Note that the above can also be written as
7x + (x - x)y = 21
or
7x + 0y =21
now, since anything times zero equals zero,
y may be any number.
Let's summarize:
1) x = 3
2) y = anything
looking back at the original question;
1) the equation is true for all ordered pairs
FALSE (only one x works, not all x)
2) there are no x and y pairs for which the equation is true.
FALSE (x=3, y=anything) makes it true, i.e. (3,1)
3) For each value of x, there is one and only one value of y that makes the equation true,
FALSE for each value of x, for the one value of x, x=3, y can be any number, which is an infinite number, not one
4) for each value of y, there is one and only on value of x that makes the equation true.
TRUE!! for all the infinite values of y you may pick, there is one and only one x you may pick, x = 3
ANSWER: STATEMENT 4 is CORRECT (TRUE)
Which scatter plot shows a nonlinear association for the data?
10
8
6
10-
8
6-
4
2
2
092746810
0 246810
yt
10
8
6
4
2
y+
10
8
6
2
0 246810
0 249698 10x
Answer:
10, 8, 6, 4, 2
Step-by-step explanation:
Each month, your phone company charges you a fee of 15 cents per minute as well as a service fee of $6.95 . Write a linear function rule that models the number of dollars y you pay each month for any number of minutes x.
Answer:
y=$9x+$6.95
Step-by-step explanation:
Answer:
$7.10
Step-by-step explanation:
6.95+.15=7.10
please help.
The price of an item at a store is p. The tax that is charges is 7%. The expression below shows the total amount that has to be paid. Mark all that apply. look at the picture I attached.
Answer:
E and D
Step-by-step explanation:
chris is comparing two music downloading websites. the first site charges a $15 membership fee and then charges $0.50 per song. the second website has no membership fee, but they charge $0.80 per song. how many songs will chris have to download before the two sites charge the same amount
Answer:
hE WILL HAVE TO DOWN LOAD 50 SONGS
Step-by-step explanation:
Perimeter is a measure of the distance around a figure. If each side of a triangle measures 0.75 inches, what is the perimeter of the triangle?
Answer:
The perimeter of a triangle is the sum of all its three sides.
So,
0.73+0.73.0.73 = 2.19in
8x + 4.3= 2(x+6) + 6x - 7.7
Answer:
Step-by-step explanation:
8x=2x+12+6x-7.7-4.3
8x=2x+12+6x-12
8x=8x
x=x
X could be any number
Example : If x=4
4*8+4.3=2(4+6)+6*4-7.7
32+4.3=20+24-7.7
36.3=36.3
It will be nice if you give me brainliest.Good luck!
Liana has 320 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed area. What is the maximum area? A rectangle that maximizes the enclosed area has a length of nothing yards and a width of nothing yards
Answer:
Breadth = 60, Length = 60
Step-by-step explanation
Let length & breadth of rectangular area be : L & B
As, Fencing Yards = 320. So, perimeter ie 2 (L + B) = 320
B = (320 - 2L)/2 → B = 160 - L (*)
Area of rectangle [A] = L x B = L (160 - L) → A = 160L - L^2
Maximising Area, So first derivative d [A] / d [L] = 160 - 2L
d [A] / d [L] ] = 0 → 160 - 2L = 0 → L = 160/2 → L = 80
By (*) : B = 160 - L = 160 - 80 → B = 80
Checking maximising condition, double derivative d^2[A] / d[L]^2 = -2
As d^2[A] / d[L]^2 is negative, L & B values are maximising A
List all the factors of 45 from least to greatest. Enter your answer below using a comma to separate each number
Answer:
So, the factors of 45 are 1, 3, 5, 9, 15, and 45.
Step-by-step explanation:
Given these processes: 1. cartilage ossification 2. bony callus formation 3. hematoma formation 4. fibrocartilaginous callus formation 5. remodeIing of woven (spongy) bone into compact bone Which sequence best represents the order in which the processes occur during repair of a fracture?
Answer:
The sequence that best represents the order during repaid of a fracture as as
follows
3. hematoma formation
4. fibrocartilaginous callus formation
2. bony callus formation
1. cartilage ossification
5. remodeling of woven (spongy) bone into compact bone
Step-by-step explanation:
When a bone is fractured, the first step following a bone fracture is hematoma formation.
Hematoma formation is formed when a little blood escapes from the blood vessels and remains in the skin's thickness, creating a blue spot. The hematoma is an effusion of blood that occurs deeper under the skin.
From there, the formation of tissues begins from end to end of the broken bones. It is a reorganization of the bone tissue (the bone itself), allowing the consolidation of a fractured bone. This bone formation welds the two parts of the broken bone together for a particular period depending on the patient's bone tissue condition. This bone callus will form in two episodes.
1) There first appears a fibrocartilaginous callus, also called connective callus, which allows the fracture to heal in a few weeks. It is an immature bone.
2) In a second step, this immature bone is gradually replaced by another bone (calcified/bony) resembling the bone which has been fractured.
From there, the ossification of the callus occurs where the bony callus is further replaced by woven spongy bones to form a stronger stabilizing collar.
Finally, the remodeling of woven (spongy) bone into compact bone takes place. Lamellar bones are replacing these woven spongy bones.
Marcus jogged all the way around a square Park that has an area of four square miles how many miles total did Marcus jog
Answer:
1.434 miles
Step-by-step explanation:
if 1.5 miles isnt an option select 1 mile
D=(x2+x1)+(y2-y1) this is the formula I need number 19 Please will mark brainliest and 50 points
Answer:
[tex]2\sqrt{2}[/tex] or [tex]\sqrt{8}\\[/tex]
Step-by-step explanation:
The formula is actually d= [tex]\sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}[/tex]. Now first, we have to find points A and C.
Point A is (1,2) and Point C is (-1,0).
Now we have to substitute the values in. That would make it d =[tex]\sqrt{(-1-1)^{2} + (0-2)^{2}}[/tex].
To simplify the parentheses, it would get to d= [tex]\sqrt{(-2)^{2}+(-2)^{2} }[/tex].
To simplify the exponents, it would get to d = [tex]\sqrt{4+4}[/tex].
To simplify the square root, it would get to d = [tex]\sqrt{8}[/tex].
So the answer is either [tex]2\sqrt{2}[/tex] or [tex]\sqrt{8}\\[/tex].
Hope this helped! If not, please let me know!
I need help on this question!!!!
Answer:
f(x)=x²-2
x=0 y=-2
x=1 y=-1
x=1.414 y=-0.000604
x=2 y=2
x=3 y=7
Step-by-step explanation:
Which statement is NOT equivalent to:
5 minus negative 3
5- -3
5 +3
5-3
Answer:
5-3
Step-by-step explanation:
Answer:
5-3
Step-by-step explanation:
the first one is exactly what you described, and the second one is the same because subtracting a negative is equivalent to adding a positive.
PLZ HELP WILL MARK BRAINLEST 1 hours max!!!!
2 or more have to answer plz help me !!!!!!!
Answer:
3x + 2 = 14
3x + 2 - 2 = 14 - 2
3x = 12
3x/3 = 12/3
x = 4
Step-by-step explanation:
3x + 2 = 14
subtract 2 from both sides
3x + 2 - 2 = 14 - 2
combine like terms.
3x = 12
divide both sides by 3
3x/3 = 12/3
x = 4
2. The hamster, x, walked 20 feet. The guinea pig walked 1/4 less than that. The guinea
pig walked
feet
You question is a little unclear but I'm going to assume you meant how much the guinea pig walked.
The hamster walked 20 feet, and the guinea pig walked 1/4 less. So you find 1/4 of 20, which is 5. Then, you subtract 20 and 5: 20-5 = 15. So the guinea pig walked 15 feet.
May somebody please help
Answer:
for the m = -1
b= -3
Type of slope= negative
Step-by-step explanation:
hope this helps
please Solve
3(2x - 5) = 27
Answer: x=7
Step-by-step explanation: 6x-15=27
6x=42
x=7
If u place a 13 foot ladder against a 12 foot building,how many feet will the Ladder be from the building
Answer:
5 feet
Step-by-step explanation:
When you place the 13 foot ladder, the ladder, floor, and wall forms a right triangle and the ladder will become the hypotenuse.
We use the Pythagorean Theorem. Let x be the distance from the building.
x^2 +12^2 = 13^2
x^2 + 144 = 169
x^2 = 169 - 144
x^2 = 25
Take the square root of 25 and you get 5
x = 5
Which correctly applies the distributive property to show an equivalent expression to (–2.1)(3.4)?
(2)(3) – (0.1)(0.4)
(–2)(3) + (–0.1)(0.4)
(2.1)(3) – (2.1)(0.4)
(–2.1)(3) + (–2.1)(0.4)
Answer:
I think the second one two but I'm not sure
Hope this helped.
Help me please
Brainliest if correct THX!!!
Answer:
1. irrational number
2. rational number
3. terminating decimal
4. repeating decimal
Step-by-step explanation:
1. If x isn't rational, it must be an IRRATIONAL NUMBER(the root I usually means not, hence the opposite of rational)
2. RATIONAL NUMBER
3. TERMINATING DECIMAL
4. 0.77777...= REPEATING DECIMAL(7 is repeating)
August hosted to dinner parties for his friends. Twenty guests attended the first party, and thirty-one guests attended the second party. What is the percentage increase of the number of guests from the first party to the second party? OA 40% О B. 60% C. 45% OD 55%
Answer:
The answer is D.
Step-by-step explanation:
First, you have to find the differences in number of guests in this 2 party :
[tex]31 - 20 = 11 \: guests[/tex]
Next, you have to divide by the smaller value which is the first party, then, multiply by 100 as the question wants percentage increase :
[tex] \frac{11}{20} \times 100 = 55\%[/tex]
sin^2x + sin^2x + cos²x
Answer:
Answer:
A. 2 sinx cosx - 1 + 2 sin^2 x.
Step-by-step explanation:
sin2x = 2 sinx cosx
cos2x = cos^2x - sin^2x
So sin2x - cos2x = 2 sinx cosx - ( cos^2x - sin^2x)
But cos^2 x = 1 - sin^2 x, so we have:
2 sinx cosx - (1 - sin^2 x - sin^2x)
= 2 sinx cosx - 1 + 2 sin^2 x.
What is the perimeter of this triangle ?
Answer:
36 units
Step-by-step explanation:
The two legs of this right triangle are 9 and 12. In order to find the length of the hypotenuse, you must plug in the 9 and 12 to the Pythagorean theorem:
a^2 + b^2 = c^2, where a and b are legs and c is the hypotenuse
If you plug in the values 9 and 12, you get:
9^2 + 12^2 = c^2
= 81 + 144 = c^2
= 225 = c^2
= 15 = c
This means that the hypotenuse is 15 units long. Now, you just need to add all the sides to get:
9 + 12 + 15
= 36 units
(Also as a fun fact, a Pythagorean Triple is when the three sides of a right triangle are integers. It is good to memorize a few of these, like 3-4-5, 5-12-13, 7-24-25 and 8-15-17. The largest side value is always the hypotenuse, and if you multiply all the sides by a scale factor, you can get other triples. If you knew the 3-4-5 triple, you might have noticed that 9 and 12 are 3 times each of the legs 3 and 4. From that information, you could just multiply the 5 by 3 to get 15 for the hypotenuse of this triangle, which might've made this problem a little easier)
Answer:
36
Step-by-step explanation:
Help quick The engineers designing the All Aboard Railroad between Boca Raton and Jupiter decide to create parallel tracks through this portion of the railway. To illustrate their plans to the county commission, they use a coordinate plane. The southbound track will have an equation of 2x + 5y = 15. What is the equation of the parallel northbound track that runs through the point (4, – 2)?
A. 2x + 5y = −2
B. 2x − 5y = 18
C. 5x + 2y = 16
D. 5x − 2y = 24
Answer:
Step-by-step explanation:
The answers is A
The required equation of the parallel track that runs through the point (4 , -2) is 2x + 5y = −2.
The engineers designing the All Aboard Railroad between Boca Raton and Jupiter decided to create parallel tracks through this portion of the railway.The southbound track will have an equation of 2x + 5y = 15. What is the equation of the parallel northbound track that runs through the point (4, – 2) TO determine.
The equation is the relationship between variables and represented as y=ax + b is an example of a polynomial equation.
Equation of the southbound track,
2x + 5y = 15
slope of the above equation is m = -2/5
Since the slope of the parallel lines are equal.
The equation of the parallel northbound track that runs through the point (4, – 2),
(y + 2) = -2/5 (x - 4)
5(y + 2) = -2 (x-4)
5y + 10 = - 2x +8
2x + 5y = 8-10
2x + 5y = -2
Thus, the required equation of the parallel track that runs through the point (4 , -2) is 2x + 5y = −2.
Learn more about the equation here:
brainly.com/question/10413253
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what is the answer for this question?
Answer:
18
Step-by-step explanation:
Hope this helps
Identify the x and y intercepts of the equation. If there are no intercepts, write none. If its linear, find the slope. If its not linear, say not linear. y=4.5
Answer:
x-intercept: none
y-intercept: 4.5
linear
slope: 0
Step-by-step explanation: