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fgiga [73]
2 years ago
10

Solve 4x - 7y ( x = 6, y = -4 ) *​

Mathematics
2 answers:
Likurg_2 [28]2 years ago
7 0

Answer:

52

Step-by-step explanation:

4(6) = 24 and -7(-4) = 28

28+24=52

Mashutka [201]2 years ago
5 0

4x-7y

4(6)-7(-4)     ↦ Substitute given coordinate points in the equation (x = 6 and y = 4.)

24-(-28)      ↦ Multiply the number.

24+28    ↦ Negative multiply Negative will always be positive.

52    ↦ Answer.

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Solve this inequality: -3 - 6(4x + 6) > -111
Semenov [28]

Step-by-step explanation:

-3-24x-36>-111

-39-24x>-111

-24x>-111+39

-24x>-72 /x(-1)

24x<72

x<2.66

5 0
3 years ago
What adds to get 3 but multiplies to get negative 18
Colt1911 [192]
6 and -3

6 + -3 = 3

6  x -3 = -18

Hope that helps! 
3 0
3 years ago
Ik this is rlly easy im just to lazy to do it
True [87]
The answer 12/72 because you multiply
4 0
3 years ago
When Sal rented a car for 3 days, he drove it a total of 90 miles and paid $193.35. When Ashley rented a car for 5 days and drov
lutik1710 [3]

Answer:

C. $59.95

Step-by-step explanation:

8 0
3 years ago
Find the area of the square rug if it is side is (7X +4) feet.
likoan [24]

Answer:

49x^{2}+56x+16 ft squared.

Step-by-step explanation:

Alright, so we are given that we have a rug that has a side of 7x+4 feet. With this information, we are able to determine the area of the square rug. Considering that it is a square rug, all the sides are equal to each other because a square has four equal sides and angles.

To solve this, you can do it in two ways.

One, write it as (7x+4)2. That 2 is supposed to represent squared.

If you know the rule, this is a perfect square trinomial.

The formula is a squared plus 2ab plus b squared. 7 and 4 are your a and b values. 7x squared is 49x squared and 4 squared is 16.

2ab, multiply 2 times 7x times 4. That is 56x.

Therefore, the area is 49xsquared plus 56x+16.

Another way is to write it like this (7x+4) (7x+4).

Since it is an exponent, we are multiplying the same thing two times. Apply the Distributive Property.

E.G. 2(x+5)= 2x+10.

With this, you are distributing two numbers into another two numbers. 7x times 7x is 49x squared and 7x times 4 is 28x. Then, go to 4. 4 times 7x is also 28 x and 4 times 4 is 16. Now, combine the like terms. 49x squared plus 28x plus 28x or 56x plus 16.

This represents your area.

I hope this helps, and I hope you have a good day!

5 0
3 years ago
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