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2 years ago

-7= 4+y solve for y what is the answer? please help, thank you.

Mathematics

2 answers:

vekshin12 years ago

8 0

Answer:

-11

Step-by-step explanation:

y=-7-4= -11

erastovalidia [21]2 years ago

7 0

Answer:

Step-by-step explanation:

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One gallon of water weighs about 8.34 pounds. How much does 3.5 gallons of water weigh?

adelina 88 [10]

Answer:

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8.34 * 3 = 25.02

8.34 * 0.5 = 4.17

25.02 + 4.17 = 29.19

Step-by-step explanation:

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2 years ago

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If Jake drove 3/4 of the 128-mile trip, how many miles did he drive?

Gnoma [55]

3/4*128=96
He drove 96 miles

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3 years ago

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For some math loving friends

shtirl [24]

The first step of finding the percent tip, we must find how much tip she paid:

Tip = $38.61 - $33 = $5.61

To find the percent tip, we must divide the tip amount by the amount she paid before the tip

$5.61 / $33 = 0.17 --> 17%

Thus the percent tip is 17%

Hope that helps!

7 0

2 years ago

Z2+9z+14 Any help would be appreciated. the z's actually have exponents.

Degger [83]

Step-by-step explanation:

the Answer is (z+7)(z+2) the solution is in the picture above please mark me brainliest :)

6 0

3 years ago

Debra plans to invest $2,250 for 10 years. She can invest in a savings account that pays 4% simple intrest or a savings account

Diano4ka-milaya [45]

Answer:

$\$180.55$

Step-by-step explanation:

step 1

Simple interest

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=10\ years\\ P=\$2,250\\r=4\%=4/100=0.04$

substitute in the formula above

$A=2,250(1+0.04*10)$

$A=2,250(1.4)$

$A=\$3,150$

step 2

Interest compounded annually

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=10\ years\\ P=\$2,250\\r=4\%=4/100=0.04\\n=1$

substitute in the formula above

$A=2,250(1+\frac{0.04}{1})^{1*10}$

$A=2,250(1.04)^{10}$

$A=\$3,330.55$

step 3

Find the differences between the two final amounts

$A=\$3,330.55-\$3,150=\$180.55$

5 0

3 years ago