Answer:
Look at step-by-step explanation
Step-by-step explanation:
Work on the second equation first.
x + 5 = 40
Get all variables on one side:
x = 35
You now have the answer for the variable of x, use this on the first equation:
2x-4y=10
2(35)-4y=10
Subtract 70 from both sides:
70-4y=10
Divide both sides by neagtive 4:
-4y=-60
y=15
Jim bought a new freezer last winter. When he plugged it in at noon the temperature
inside the freezer was 21°C. That night the temperature inside the freezer was -15°C. By
how many degrees Celsius did the temperature change?
Answer:
The temperature inside the freezer dropped 36°C.
Step-by-step explanation:
You need to subtract the new temperature from the old temperature to get the difference. That's a pretty cool freezer! (Pun intended!)
I hope this helps!
(3x + 23) degree (7x - 37) degree find m angle XYV
Answer:
An Obtuse angle is an angle whose degree measure is greater than 90 and less than 180o. ... 2x + 8 + 3x + 2 = 180 ... 14 – 23, Provide the name of the following relationships: 14. ... m∠BEC = 5x - 25 and m∠DEA = 7x – 65, find ... 37. If the measures of the angles of a triangle are represented by 2x + 8, x - 8 and 2x – 20.
Step-by-step explanation:
The required measure of angle ∠XYV is given as 112°.
What are the angle?Orientation of the one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as the angle.
here,
According to the given condition,
As Line WV intersects line XZ at V so,
Angle XYW = Angle VYZ
Substitute the value in the above expression,
3x + 23 = 7x - 37
60 = 4x
x = 15
∠ XYW = 3x + 23
= 3(15) + 23
= 45 + 23
= 68
Now,
∠XYV = 180 - ∠ XYW
Substitute the value in the above expression,
∠XYV = 180 - 68
∠XYV = 112°
Thus, the required measure of angle ∠XYV is given as 112°.
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A box of spaghetti at the grocery store is purchased for $1.60 wholesale and is marked up by 60 percent. Then, the store marks down the item by 20 percent. A customer wants to buy three boxes of spaghetti. How much will the customer pay, including paying 8 percent sales tax? Round your answer to the nearest cent.
Look at the table below.
Steps
Moses’s work
Step 1
1 dollar and 60 cents (1.6) = 2 dollars and 56 cents
Step 2
2 dollars and 56 cents (0.80) = 2 dollars and 5 cents
Step 3
2 dollars and 5 cents (3) = 8 dollars and 20 cents
Step 4
8 dollars and 20 cents (1.08) = 8 dollars and 86 cents
In which step did Moses first make a mistake in his work?
Step 1
Step 2
Step 3
Step 4
3 new tires for $210; 4 new tires for $250
Answer:
3 new tires for $210; 4 new tires for $250
Step-by-step explanation:
Write in slope intercept form:
(1,4) slope= -2
Answer:
y = -2x + 6
Step-by-step explanation:
Slope-intercept form is:
y = mx + b
where m is the slope and b is the y-intercept.
So we are given a point, (1, 4), and a slope, -2, and we are asked to write the information into slope-intercept form. To write something directly into slope-intercept form, we need the y-intercept and the slope. Here, we are given a point, that is not the y-intercept, and a slope.
Instead of plugging for m and b in the equation for slope-intercept form, we can write the equation in point-slope form and then solve for slope-intercept form.
Point-slope form is:
y - y₁ = m(x - x₁)
where m is the slope and (x₁, y₁) is a point.
Lets plug in (1, 4) for (x₁, y₁) and -2 for m.
y - 4 = -2(x - 1)
Now lets solve for slope-intercept form. Distribute the -2 on the right side.
y - 4 = -2x + 2
Add 4 to both sides.
y = -2x + 6
And now we have the equation in slope-intercept form.
I hope you find my answer and explanation to be helpful. Happy studying.
Juan can do 48 jumping jacks in 2 minutes. How many jumping jacks will Juan have completed after 17 minutes?
Answer:
384 and a half.
Step-by-step explanation:
Took me a while, but just add 48 for every 2 minutes.
Ellie drove 13 miles in 2/5 hours. if she drove at a constant rate, how fair did she travel in one hour? enter your answer as a whole number, proper fraction, or mixed number in simplest form.
Answer:i think its 3.25 miles
Step-by-step explanation:
Answer:
5.2
Step-by-step explanation:
13÷2.5=5.2
I'll give brainliest
what is a slope??????
Answer:
Step-by-step explanation:
The slope is defined as the ratio of the vertical change between two points, the rise, to the horizontal change between the same two points, the run.
Answer:
The slope is the steepness of a function/line
it is the coefficient of x or m in y=mx+b
John earned $36 for 8 hours of work, Earnings are directly proportional with hours worked. How much did he earn when he worked 30 hours? O $135
Answer:
he earned 135 dolars
Step-by-step explanation:
Answer:
$135
Step-by-step explanation:
first you want to find out how much he makes for 1 hour
36/8=4.5
then you multiply 4.5 by 30 because he makes $4.5 an hour and you want to find out how much money he makes when working 30 hours
what is the expanded form of 5.629
Answer:
5
+ 0.6
+ 0.02
+ 0.009
Step-by-step explanation:
5 × 1
+ 6 × 0.1
+ 2 × 0.01
+ 9 × 0.001
5 × 100
+ 6 × 10-1
+ 2 × 10-2
+ 9 × 10-3
all of them are correct
Which expression has the same meaning as p 11/5?
Answer:
Under the first one
Step-by-step explanation:
The expression ⁵√p¹¹ is equivalent to the given expression. The correct answer would be an option (C).
What are exponential expressions?Exponential expressions, as the name indicates, involve exponents. We already know that the exponent of a number (base) specifies how many times the number (base) has been multiplied.
The exponential expression is given in the question, as follows:
[tex]p^\frac{11}{5}[/tex]
We have to determine the equivalent expression to the given expression.
As per option (C), we have
⇒ ⁵√p¹¹
The above expression also can be written as:
⇒ [tex](p^{11})^\frac{1}{5}[/tex]
⇒ [tex](p^{11})^{\times}{(\frac{1}{5})}[/tex]
⇒ [tex]p^\frac{11}{5}[/tex]
Hence, we can conclude that the expression ⁵√p¹¹ is equivalent to the given expression.
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If Coach Smith has 12 players and each player needs three uniforms, three shin guards, two balls, and three pairs of cleats. How much will he end up spending on his equipment for the entire soccer team?
you can't do that. there isn't enough detail. we don't know how much each item costs
A group of students stood in a circle to play a game. The circle had a diameter of 22 meters. Which measurment is closet to the circumference of the circle un meters.
Answer: Is D 69.08
Formula:C=Pi(d)
C=22 times 3.14 equals 69.08
Circumference=69.08
Hope this helps :)!
A couch and coffee table cost a total of $1156. The cost of the couch is three times the cost of the coffee table find the cost of each item.
Answer:
The couch is 867 and the coffee table is 289
Step-by-step explanation:
The question states that the couch is 3 times the cost of the coffee table. This means this includes the cost of the couch and the coffee table. So I would do 1156= x+3x, which equals 1156=4x. X is the cost of the coffee table. 3x is the cost of the couch. I'd divide 1156 by 4 and get 289. Now you take 289 and plug it in the equation, 1156=x+3x. X would equal to 289, and 3x would equal to 867.
Find the quotient.
−54÷−6
Answer:
9
Step-by-step explanation:
PLEASE HELPPPPPPP THIS IS SO HARDDDDD
Rachel is driving her car at a constant 60 miles per hour. If she drives for four hours, what is the
total distance she drives?
Answer:
240
Step-by-step explanation:
60 x 4
Answer:
240 miles
Step-by-step explanation:
If she's going 60 miles per hour and she drives 4 hours then you multiply those two numbers together and get that she has drove 240 miles.
If the sum of three consecutive numbers is 852, what is the middle one?
Divide the total by the quantity of numbers:
852/3 = 284
Because there are an odd quantity of numbers (3) the answer is the middle number.
The answer is 284
Help me please I will give Brainlyest
Answers Below
1) = 1/5
2) = 1/4
3) = 3/20
4) = 2/25
5) = 1/3
Please Brainly
Answer:
i)1/5
ii)1/2
iii)3/20
iv)1/3
Step-by-step explanation:
Just keep eliminating in all sums as we are multiplying and u will get the ans.
Pls mark me brainliest
If x<0 and y>0, determine the sign of the real number.
Answer:
both negative because y is negative and make both answers negative
Answers:
6) B. Negative7) A. Positive==============================================
Explanation:
x < 0 means x is negative
y > 0 tells us y is positive
Dividing a positive by a negative, or vice versa, means the result is negative. It's similar to how positive times negative = negative. So that is why the answer to problem 6 is "negative".
---------------
In problem 7, we square x to get some positive result.
Consider something like x = -7. Squaring this leads to
x^2 = (-7)^2 = (-7)*(-7) = 49
The two negatives cancel out when we square.
Since x^2 is positive, and y is positive, this means x^2*y is positive as well.
What is the slope of this graph?
A. -1/3
B. -3
C. 3
D. 1/3
Answer:
B
Step-by-step explanation:
The formula is rise over run... your rise is negative 3 and your run is one... -3/1 is the same as -3
Answer:
-3 (B)
Between each point on the line, it goes down 3 units.
determine which operation is needed in the blank so that the expression simplifies to 25.
40_10_4_(8_2_3)_5^2
Answer:
÷ - × ÷ - +
Step-by-step explanation:
40 ÷ 10 - 4 × (8 ÷ 2 - 3) + 5^2
MATH EXPERTS I NEED YOU! Is it graph A, B, C, or D?
Answer:
Its the first graph ok kid
Step-by-step explanation:
it took jaivin 18 minutes to jog 4 laps . how many minutes did it to jog each lap at this rate?
Answer:
4.5 minutes for each lap
Step-by-step explanation:
18 min/ 4laps
simplify to 9min/2laps which equals 4.5 mins/lap
Complete the square. Please help ASAP
[tex]x^2 + 4x + (\frac{4}{2})^2 = x^2 + 4x + 4[/tex]
Answer is 4
Pat started reading at 1pm . He reads five pages in 15 minutes. If Pat reads until 2:45 pm, how many pages has he read?
Answer:
35 pages
Step-by-step explanation:
First count how many minutes have passed. Divide by 15, then multiply by 5 since 5 pages are read every 15 minutes.
Answer:
35 pages
Step-by-step explanation:
If Pat reads 5 pages in 15 minutes, then it means that for every 5 pages he reads, it will take him 15 minutes. So, his rate is 5/15, simplified to 1/3. For every 1 page he reads, it will take him 3 minutes. 1pm-2:45pm is 1 hour and 45 minutes, which is 105 minutes. Now we just have to divide it by 3, since he reads 1 page every 3 minutes. 105/3=35. He will read 35 pages.
PLS HELP ILL GIVE BRAINLEIST ALSO ILL GIVE MANY POINTS
Answer:
Digit
Step-by-step explanation:
Answer:
Expanded Notation Form:
30,000
+ 9,000
+ 0
+ 0
+ 5
Expanded Factors Form:
3 × 10,000
+ 9 × 1,000
+ 0 × 100
+ 0 × 10
+ 5 × 1
Expanded Exponential Form:
3 × 104
+ 9 × 103
+ 0 × 102
+ 0 × 101
+ 5 × 100
Word Form:
Thirty-nine thousand five.
Step-by-step explanation:
from (google)
The width of a rectangle is 50% more than the length. The perimeter is 65. Find both dimensions.
Answer:
Step-by-step explanation:
Perimeter of rectangle = 2 times width + 2 times length
P= 2W + 2L
Let's say W = width , L= length
We are told the width is 50% more than the length.
width = 0.5 + L
W = 0.5 + L
From here we can say
Perimeter = 2W + 2L so,
P = 2(0.5 + L) + 2L
P = 1 + 2L + 2L
P = 1 + 4L
We are also told perimeter is 65 (P=65)
65 = 1 + 4L
Subtract 1 from both sides
64 = 4L
Divide 64 by 4 to find L
L = 64/4 = 16
Now since we know L= 16, this means
W = 0.5 + L is the same as
W = 0.5 + 16 = 16.5
Therefore Length = 16, width = 16.5
78÷9 please there is a reminder
8.66666666667
But if you need a smaller number it would be 8.66 or 8.6
Hope dis helps TwT
At an end-of-summer clearance sale, Nathan sees a hat marked "65% Off." The original price was $12.98.
Part A
How much money is discounted from the original price? Show your work. Round your answer to the nearest cent.
Answer:
$4.54
Step-by-step explanation:
Because if you take $12.98 and multiply that by 65% you will get 8.437 and when you subtract that by the original amount you will get $4.54.