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4 years ago

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

2 answers:

7 0

(y+z=6) * -5 is the best answer because when you add the two equations together the y will cancel and you will be left with z's in the equation.

netineya [11]4 years ago

3 0

Answer:

The answer is B.

Step-by-step explanation: Lol Its been 4 years already since you asked. But i took the test so thats how i know.

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Is -43 greater than -30?

FrozenT [24]

No Because it is less than -30

3 0

4 years ago

Mariana tried to drink a slushy as fast as she could. She drank the slushy at a rate of 4.5 millimeters per second. After 17 sec

Nitella [24]

Answer: There is 225 millimeters of slushy originally in the cup.

Explanation:

Since we have given that

Rate at which she drink the slushy = 4.5 millimeters

Time taken to drink the slushy by Mariana = 17 seconds

Total quantity she drank is given by

$4.5\times 17=76.5\ millimeters$

Still there is left some slushy,

Quantity of slushy left =148.5 millimeters

Total quantity of slushy originally in the cup was given by

$148.5+76.5=225\ millimeters$

Hence, there is 225 millimeters of slushy originally in the cup.

6 0

4 years ago

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After dinner 2/3 of a pan of lasagna is left

a_sh-v [17]

Answer: ok and

Step-by-step explanation:

8 0

3 years ago

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What is the equation of the line in slope-intercept form?

ozzi

Answer:

Step-by-step explanation:

All of the answer choices are in slope-intercept form.

The slope-intercept form is y=mx+b where m=slope and b=y-intercept.

4 0

3 years ago

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Ken invests 6,000 into two accounts one account earns 8% interest and the other earns 12% interest after one year his total inte

Len [333]

Answer: ken invested $3500 in the 8% account.

Step-by-step explanation:

Let x represent the amount invested in the account earning 8% interest.

Let y represent the amount invested in the account earning 12% interest.

Ken invests 6,000 into two accounts one account earns 8% interest and the other earns 12% interest. This means that

x + y = 6000

The formula for simple interest is expressed as

I = PRT/100

Where

P represents the principal

R represents interest rate

T represents time in years

I = interest after t years

Considering the account earning 8%

I = (x × 8 × 1)/100 = 0.08x

Considering the account earning 12%

I = (y × 12 × 1)/100 = 0.12y

After one year, his total interest earned from the two accounts totaled $580 . This means that

0.08x + 0.12y = 580 - - - - - - - - - - 1

Substituting x = 6000 - y into equation 1, it becomes

0.08(6000 - y) + 0.12y = 580

480 - 0.08y + 0.12y = 580

- 0.08y + 0.12y = 580 - 480

0.04y = 100

y = 100/0.04

y = 2500

x = 6000 - y = 6000 - 2500

x = 3500

7 0

3 years ago