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2 years ago

A student is trying to solve the system of two equations given below:

Mathematics

1 answer:

levacccp [35]2 years ago

8 0

Answer: B: (y + z = 6) × -5

Step-by-step explanation:

if you multiply 'y' by -5 it turns into -5y. Therefore when you add -5y and 5y together, you get 0y which is what you want when eliminating the y-term.

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Bridget and Caroline win some money and share it in the ratio 7:3. Bridget gets £40 more than Caroline. How much did they get al

solong [7]

Answer:

£100

Step-by-step explanation:

if the ratio is 7:3, the difference between them is 7-3 . = 4.

So,

4x = £40

Now, calculate x

x = £10

Now,

we are able to calculate:

7x (Bridget's share) = £70

3x (Caroline's share) = £30

Sum = £100

Hope this helps.

Good Luck

8 0

3 years ago

PLSSSSSS HELP <br> BRAINLIST

Helga [31]

Answer:

The step 4 is not what he should have done. But the wrong is step 5, because if he added -2x both sides, it would give the following equation:

$x-12=-4x+6$

and not $x-12=6$

Note that in step 4 he should have added 2x and not -2x to both sides, but we still have the equality. The problem is that step 5 is totally wrong.

I don't know what answer is expected to this question, but I would mark step 5, because this is mathematically wrong.

Solving the equation

$3(x-4)=-4-2(x-5)$

Using distribution

$3x-12=-4-2x+10\\3x-12=-2+6$

Add $2x$ both sides

$3x-12+2x=-2x+6+2x$

$5x-12=6$

Add 12 both sides

$5x-12+12=6+12\\5x=18$

Divide both sides by 5

$x=\frac{18}{5}$

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3 years ago

A flat screen television measures diagonally 40 inches and 24 inches in length. What

Akimi4 [234]

The width should be 32 inches.

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2 years ago

C=K(Rr/R-r) solve for R<br><br> Pweese help.

Monica [59]

Answer:

hjv

Step-by-step explanation:

jvfkydf.;jurdfrtkuo7g

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3 years ago

If the tape diagram represents a 10-pound bag of almonds, but a baker only uses 3/4 of a bag (the shaded region), how many pound

ale4655 [162]

Answer:

7.5 lbs.

Step-by-step explanation:

A fraction is a division problem so to turn it into a decimal you divide 3 by 4. 0.75. 0.75 multiplied by 10 lbs. is 7.5 lbs.

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2 years ago

Read 2 more answers