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sweet [91]
3 years ago
11

Maths substitution y=2x-10 Y=-4x+8

Mathematics
2 answers:
joja [24]3 years ago
8 0
<span>y=2x-10
2x-10=-4x+8
6x=18
x=3
y=2*3-10=-4
</span>
Elanso [62]3 years ago
5 0
Solve for the first variable  in one of the equations , then substitute the result into the other equation...      (3,-4)?
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Tina is saving to buy a notebook computer. She has two options. The first option is to put $500 away
AnnyKZ [126]

Answer:

10 months and $700

Step-by-step explanation:

1) $500 and $20 a month

Month 1: 520

Month 2:540

Month 3:560

Month 4: 580

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Month 7: 640

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2)$300 and $40 a month

Month 1: 340

Month 2:380

Month 3:420

Month 4: 460

Month 5:500

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Month 10:700

7 0
3 years ago
Read 2 more answers
Solve 4x - c=k for x
kumpel [21]

Answer:

x=k/4+c/4

Step-by-step explanation:

4x-c=k

4x=k+c

x=k/4+c/4

8 0
4 years ago
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Octavia uses 3 1/2 cups of sugar to make 20 ounces of Lemonade. How many cups of sugar would be used to make 1 ounce of Lemonade
Y_Kistochka [10]

Answer:

7/40

Step-by-step explanation:

Since 1 ounce is 1/20 of 20 ounces, she needs to use 1/20 of 3 1/2 cups.

1/20 * 3 1/2 = 1/20 * 7/2 = 7/40

3 0
3 years ago
Read 2 more answers
There’s also D <br><br> D: 4m on top and 4m on the side
Wewaii [24]

B hope this helped have a nice day! =D

Oh yes 4x5 is another answer so yep god I forgot that sorry!

4 0
3 years ago
Read 2 more answers
Referring to the figure, find the volume of the solid shown. Round to the nearest whole number. Will mark brainliest...
nirvana33 [79]

Answer:

648

Step-by-step explanation:

FInd volume of bottom half (9x6x12)

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3 years ago
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