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podryga [215]
3 years ago
11

Can someone please help me with these 7th grade math questions

Mathematics
1 answer:
larisa86 [58]3 years ago
7 0

Answer:

The rule is y=60

Step-by-step explanation:

If you divide 180 by 3, you get 60.

Now, find all the y's to x's up until you get to 11 and plot the points on the graph.

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What number must be added to the expression below to complete the square ? x2+7x
stellarik [79]

Answer:

you must add 2 to the equation

Step-by-step explanation:

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3 years ago
You ask four people to the prom. If X is the number of "yes" responses, what is E(X)? Assume equal probability for
VladimirAG [237]

Answer:

e is the amount of people

Step-by-step explanation:

4 x so let’s say you have two x you have 50% of the people that said yes.

6 0
3 years ago
Joanne buys a car for $1500 after 12 months Joanne is forced to sell the car for 10% less than what she brought it for, how much
MAVERICK [17]

Answer:

$1350

Step-by-step explanation:

Given she sold the car 10% less than what she bought it, amount she sold the car will be 10% of the amount she bought the car subtracted from the amount she bought he car .

She bought the car for $1500

Therefore,

10% of $1500

10% /100% x $1500

0.1 x $1500

$150

Now , amount she sold the car = $1500 - $150

= $1350

She sold the car for $1350

7 0
4 years ago
Which first step for solving the given system using substitution results in an equation without fractions?
vaieri [72.5K]
The correct answer is solve for y in the second equation.

Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient. ...
Step 2: Subtract the second equation from the first.
Step 3: Solve this new equation for y.
Step 4: Substitute y = 2 into either Equation 1 or Equation 2 above and solve for x.
5 0
3 years ago
How did American factories change during World War II to support the war effort?
shusha [124]

Step-by-step explanation:

Many Factories were converted into ammunition factorys and weapon factorys to support the war effort

3 0
3 years ago
Read 2 more answers
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