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Masja [62]
3 years ago
10

Please help need help

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
8 0
When we subtract equations we subtract the left sides, subtract the right sides, and set them equal.  I'll show detailed steps but usually you can just do it all in one step.

5x + 4y = 25

5x + 2y = 3

Subtracting,

5x + 4y -(5x + 2y) = 25 - 3

2y = 22

The problem is easily solved from here, but let's call it done with

Choice B



kondor19780726 [428]3 years ago
4 0
The answer is B 2y=22
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Kelly bought a computer that was 20% off the regular price of $1,060. If a 7% sales tax was added to the cost of the computer, w
fomenos

Answer: $ 1361.04

Step-by-step explanation:

Discount will be 1060 * 20% = 212

Sales price 1060 + 212 = 1272

Tax 7% = 89.04

Kelly paid 1272 + 89.04 = 1361.04

4 0
2 years ago
An automobile salesman receives a monthly bonus cheque if his commission income is at least $6,800.00 in a given month. There ar
Reika [66]

The salesman earns $850 per automobile he sells.

Since x represents the amount of automobiles the salesman sells, we can apply the commission as a coefficient to this variable. Therefore, the total commission that the salesman earns can be represented by $850x.

The bonus cheque is only received if the salesman's commission income is <em>at least </em>$6,800. 'at least' means that the salesman can still receive the cheque if his commission is exactly $6,800. The sign that we can use for this situation is the greater than or equal to sign, ≥.

The inequality that shows the commission income needed for the cheque is $850x ≥ $6,800. However, this question asks for the number of automobiles the salesman must sell to get the cheque.

Divide both sides by $850, as that represents his sales from one commission:

x ≥ 8

The inequality x ≥ 8 represents the amount of automobiles the salesman will need to sell to get the bonus cheque.

6 0
2 years ago
Solve each equation and check.show all work. ​
harina [27]

Answer:

-b=11

Step-by-step explanation:

Nothing else is equal to a number except its self

4 0
3 years ago
Find the slope of the line containing the pair of points f(1) = -6 and f(-7) = -6.
DENIUS [597]

We have that    the slope of the line containing the pair of points f(1) = -6 and f(-7) = -6. is

m=\infty

From the question we are told

Find the slope of the line containing the pair of points f(1) = -6 and f(-7) = -6.

Where Standard form of Equation is

y=mx+c

Generally the equation for the Slope  is mathematically given as

m=\frac{y_2-y_1}{x_2-x_1}

Therefore

m=\frac{-7-1}{-6-(-6)}\\\\ m= \infty

Therefore

The slope of this line is

m=\infty

For more information on this visit

brainly.com/question/23366835

7 0
1 year ago
9. At the football club there are 3 boys for every 2 girls. There are
77julia77 [94]

Answer:

hay 20 chicas

Step-by-step explanation:

4 0
3 years ago
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