Equação do primeiro grau.
-10 + x = -8
Answer:
2
Step-by-step explanation:
The rectangular floor of a classroom is 20 feet in length and 32 feet in width. A scale
drawing of the floor has a length of 5 inches. What is the area, in square inches, of the
floor in the scale drawing?
i cant find the answer anywhere else lol
25.6 square inches
20 divided by 5 is 4
32 divied by 5 is 6.4
Multiply them and get 25.6
find the distance between (-1,-4) and (5,4)
Answer:
10 units
Step-by-step explanation:
√(-1-5)²+(-4-4)²
√(-6)²+(-8)
√36+64
√100
10 units
Answer:
Step-by-step explanation:
what will we end up with when we substitute into the formula?
I need help ASAP! And work needs to be shown!
Answer:
32 x p/100 = 40
(Solve for P)
Multiply by 100 on both sides
32x = 4,000
Divide by 32 to get:
X = 125%
(reason why you multiply by 100 is because opposite of division is multiplication and we multiply the number "100" because we always multiply the denominator to both sides when having a fraction so you can solve for p or whatever. And that means p/100 x 100 it means p because since p is not a known value we consider 1/100 x 100 = 1, a variable by itself means 1 so you could just put p by itself next to the number its multiplied by which is 32 so it would be 32p because your multiplying both and the opposite of that would be dividing by 32 on both sides because you are getting rid of the 32 so therefore you will be left with: X = 125)
Tickets for a school play cost $5 for adults and $2 for students. At the end of the play, the
school sold a total of 85 tickets and collected $290.
What is the number of adult tickets sold?
Laura borrowed $9,000 at 4% for 2 years. what was the total interest?
Answer:
$720
Step-by-step explanation:
I = Prt
I = (9000)(0.04)(2)
I = 720
Answers could be al in photo or 16
Answer:
803.84 Cm Squared
Step-by-step explanation:
A= π r2
A = 3.14 times 16 squared
A = 803.84
Andros has an oil fired heating system. In 30 days period he used a full tank of oil at a constant rate per day . At a different time of the year the amount of oil andros uses per day is 1/3 of the rate used in 30 days period . How many days should a full tank of oil last at this new rate
Answer:
90 days
Step-by-step explanation:
Let the rate per day for the 30 days period be x
Given that the rate drops to 1/3 of the rate used in 30 days period, it means that the new rate
= 1/3 x
If at a rate of x, the full tank runs for 30 days
at a rate of 1/3 x, the full tank would run for
= x/ (1/3 x) * 30 days
= 3 * 30 days
= 90 days
At the new rate, the full tank of oil will last for 90 days
At a middle school, 18% of all seventh grades are teacher's aides. 64 seventh graders are teacher's aides, how many seventh graders are at the middle school? (Round to the nearest whole)
Answer:
356 Seventh Graders
Step-by-step explanation:
All I did was find out what number 64 was 18% of, and that gave me the answer. I took 64 and put it over 18%, and set it across from X over 100%. I did the cross multiplication, and got 355.56, but rounded it to get 356. So there are 356 total seventh graders. Hope this is helpful...have a great day! :))
Hey only need help with this one problem.
5x+10y-15
thx','
Answer:
5 (x + 2y - 3)
Step-by-step explanation:
5x + 10y - 15 = 5*x + 5*2y - 5*3
= 5* (x + 2y - 3)
Answer this question to get marked as brainliest!!!
Answer:
22
Step-by-step explanation:
180 - 90 - 68
Answer:
22
Step-by-step explanation:
Evaluate the expression below when n = 4. If needed, answer as a fraction or a decimal.
6(n+8) - 5n
When n is equal to 4, the expression 6(n+8) - 5n evaluates to 52. This means that if we replace the variable n with 4, the expression simplifies to the constant value of 52.
To evaluate the expression 6(n+8) - 5n when n = 4, we substitute n with 4 and simplify step by step:
First, we substitute n with 4 in the expression:
6(4+8) - 5(4)
Next, we simplify the parentheses:
6(12) - 5(4)
Multiplying within the parentheses:
72 - 20
Finally, we subtract the two values:
52
As a result, the formula 6(n+8) - 5n evaluates to 52 when n is equal to 4. This indicates that the expression becomes simpler if we substitute the variable n with the number 4, which is 52.
for such more question on expression
https://brainly.com/question/4344214
#SPJ8
Please help me with this!!
Paul is buying packages of hot dogs for a camping trip. Each package is 30 oz. If he buys 4 packages, about how many pounds of hot dogs is he buying?
480 pounds
4 pounds
8 pounds
10 pounds
Answer:
8 pounds
Step-by-step explanation:
30 x 4 / 16 = 7.5 but abt 8
Answer:
8 pounds
Step-by-step explanation:
30 ounces = 1.875 pounds
1.875 * 4 = 7.5 rounded up = 8
Which graph shows the function
4y - x= 0?
Answer:
y=x/4
Step-by-step explanation:
add x to the other side of your equation so: 4y = x
now divide both sides by 4 so your y is isolated: y=x/4
HELP ! The angle measurements in the diagram are represented by the following expressions.
A= 6x – 2
B= 4x + 48
solve for x and then find the measure of a
Answer: 148
Step-by-step explanation:
Answer:
148
Step-by-step explanation:
khan
6x – 64 = 2x - 44
solve for x
Answer: x= 5
Step-by-step explanation: subtract 2x from both sides eliminating 2x.
4x-64=-44 add 64 to both sides eliminating -64
4x=20 divide by 4
20/4 = 5
4x/4 = x
x= 5
Hope this helps :)
4×+5 ayudenme por favor ;)
Answer:
There are no Like Terms.
Answer: 54=x
Step-by-step explanation:
Find m
2x
(3x – 10)
D
E
B
mABC=
mZCBD-
Answer:
x--5
Step-by-step explanation:
2x+ x
Which is the slope of the line that passes through the points (4,2) and (6,7)?
Answer:
the slope of the line is 5/2
The amount of money in a savings account is shown as a function of the number of days spent shopping. After 3 days of shopping how much money is left in the savings account.
A. 80$
B. 70$
C. 90$
D. None of the above
anwser is a
Step-by-step explanation:
hii please help i’ll give brainliest
find the value of given expression
[tex] \sqrt{200 \div 2} [/tex]
Answer:
10 Ans.......
Step-by-step explanation:
Given:
=√200÷ 2
Solution:
= √200÷2
= √100
= 10 Answer......
is the number of calories proportional to the number of miles?
Answer:
it depends on the amount of miles
Step-by-step explanation:
These questions are very hard
Help me please with the steps on how you can find the number of solutions or zeros with these questions!
Answer:
2x²+5x-9=0
using quadratic formula
a=2 b=5 c=-9
x=[-5±√5²-4(2)(-9)]/2(2)
x=[-5±√97]/4
the zeros are( -5±√97)/4
i dont know how to do this, please help
Answer: B= 11
Step-by-step explanation:
Write a set of ordered pairs that is represented by the arrow diagram 49,13 69,32 18,22 78,57 28,57 the set of order pair is? 
Answer:
The mapping can also be represented as the set of ordered pairs: (4, 9) (5, 10) (6, 11) (7, 12). The ordered pair preserves the directional property of the relation. It is consistent with the order of points plotted on a Cartesian Plane represented by (",$). In the Arrow Diagram that follows.
Step-by-step explanation:
Determine whether the equation is an identity or not an identity. Sin theta/cos theta + cos theta/sin theta = cos theta sin theta
Answer:
The equation is not an identity.
Step-by-step explanation:
Since we have Sin theta/cos theta + cos theta/sin theta = cos theta sin theta, we re-write as Sinθ/cosθ + cosθ/sinθ = cosθsinθ where theta = θ.
For the equation to be an identity, we need to show that L.H.S(left-hand-side)= R.H.S (right-hand-side)
So,
Sinθ/cosθ + cosθ/sinθ = (Sin²θ + cos²θ)/cosθsinθ (taking L.C.M = cosθsinθ)
= 1/cosθsinθ (Sin²θ + cos²θ = 1)
≠ cosθsinθ
Since L.H.S = Sinθ/cosθ + cosθ/sinθ = 1/cosθsinθ ≠ R.H.S = cosθsinθ, the equation is not an identity.