All categories

3 years ago

Solve the system of equations 4x equations. 8y = -8 and 5x-9y = -7 by combining the

Mathematics

1 answer:

statuscvo [17]3 years ago

4 0

Answer:

x=−16/5

and y=−1

Step-by-step explanation:

You might be interested in

To divide fractions, you multiply by the reciprocal of the second fraction.

kicyunya [14]

This is true.

Example:

= 8/9 ÷ 7/3
to divide fractions, multiply by the reciprocal/inverse of 7/3

= 8/9 * 3/7

= (8*3)/(9*7)
multiply numerators; multiply denominators

= 24/63
simplify

= 8/21

ANSWER: This is (A) true

Hope this helps! :)

3 0

3 years ago

What is the factored form of x^3 + 125?

klemol [59]

Answer:

(X+5)(x^2-5x+25)

Step-by-step explanation:

3 0

3 years ago

Help me with this please!!!

Mademuasel [1]

Answer:

100°

Step-by-step explanation:

360 degrees around a point.

140 + 120 = 260

360 - 260 = 100

5 0

3 years ago

Jane has three boxes she needs to ship. Box X weighs 33 kg more than Box Y and Box Z weighs 12 kg more than Box Y. She

andreyandreev [35.5K]

Answer:

$3w+45=557$

Step-by-step explanation:

Let the weight of box Y be w kg.

Box X weighs 33 kg more than Box Y, then the weight of box X is

$w+33$ kg.

Box Z weighs 12 kg more than Box Y, then the weight of box Z is

$w+12$ kg.

The total weight of all boxes is

$w+(w+33)+(w+12)=w+w+33+w+12=3w+45$ kg

Jane measured the total weight of all the boxes and it was found to be 557 kg, therefore,

$3w+45=557$

$3w=512$

3 0

3 years ago

Solve -5 square root x =15

Nezavi [6.7K]

Answer:

x = 9.

Step-by-step explanation:

-5 square root x =15

divide both sides by -5:

√x = 15/-5 = -3

Squaring both sides:

x = 9.

3 0

3 years ago