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2 years ago

-15x+8y=-30 -5x+5y=-10

Mathematics

1 answer:

Scilla [17]2 years ago

4 0

Answer:(x,y)=(6,10)

Step-by-step explanation:

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Help Meeeeeeee!!!!!!!!

vesna_86 [32]

Answer: 1st one

Step-by-step explanation:

8 0

2 years ago

Help please thank you!

Liula [17]

97 rounds up to 100
78 rounds up to 80
100x80= 8,000
estimate=8,000

97x78=7,566
product=7,566

7 0

2 years ago

Read 2 more answers

F (x) = – x2 + 4x + 1

lora16 [44]

Answer:

x = 0 or x = 3

Step-by-step explanation:

if f(x) = g(x) then – x2 + 4x + 1 = x + 1

add the like terms

-x^2 +3x = 0

-x (x-3) = 0 then x is either 0 or 3

6 0

2 years ago

Read 2 more answers

What is 17/18 + 1/20

MrMuchimi

Answer:

179/180

Step-by-step explanation:

Step One

Find the prime factors of 18 and 20

18:3*3*2

20: 2 * 2 * 5

Step Two

You need two 2s two 3s and one 5 for the common denominator

The common denominator is 2 * 2 * 3 * 3 * 5 = 180

Step Three

Put the two fractions over 180

$\dfrac{17*10}{10*18} + \dfrac{1*9}{10*18}$

$\dfrac{170}{180} + \dfrac{9}{180}$

179/180

8 0

3 years ago

1/5 and 5/6 what number could be a common denominator for these two fractions:

Likurg_2 [28]

30 because 5x6= 30. All you have to do if the fractions are already simplified, is multiply the denominators together.

5 0

1 year ago