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3 years ago

Goal is to make $100. What % of the goal was met if raised $350?

Mathematics

1 answer:

slega [8]3 years ago

7 0

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<h3>A = m ÷ t × 100</h3><h3>= $100 ÷ $350 × 100</h3><h3>= <u>28.6%</u></h3><h3>THE GOAL WAS SURPASSED BY 28.6%</h3>

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Solve each proportion: 4/15=x/75 and t/9=35/6 how do you work these please show steps thank you

BARSIC [14]

Multiplied by the cross

4/15 = x /75

15•x=4•75
15x=300
x= 300 : 15
x=20

t/9 = 35/6

9•35 = t•6
315 =6t
315 : 6 = t

52,5 = t

5 0

3 years ago

Please answer fast, it's important... Q) find the volume of cube whose dimensions are (x+7y), (7x-y) and (xy-5).

Alona [7]

Answer:

$Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2$

Step-by-step explanation:

Given

Shape: Cube

Dimension: (x+7y), (7x-y) and (xy-5).

Required

Determine the volume

The volume is calculated by multiplying the dimensions:

$Volume = (x+7y) * (7x-y) * (xy-5)$

Evaluate the first 2 brackets

$Volume = [x(7x-y)+7y(7x-y)] * (xy-5)$

$Volume = [(7x^2-xy)+(49xy-7y^2)] * (xy-5)$

$Volume = [7x^2-xy+49xy-7y^2] * (xy-5)$

$Volume = [7x^2+48xy-7y^2] * (xy-5)$

Open brackets

$Volume = xy[7x^2+48xy-7y^2] -5[7x^2+48xy-7y^2]$

$Volume = 7x^3y+48x^2y^2-7xy^3 -35x^2-240xy-35y^2$

8 0

3 years ago

A person invest $3000 in a bank the bank pays 6.75% interest compounded semi annually to the nearest 10th of a year how long mus

Monica [59]

Answer:

It would take 12.1 years.

Step-by-step explanation:

We are given with $3000 invested in bank pays 6.75% interest compounded semi annually to the nearest 10th. We are asked to find the number of years the bank reaches $6700.

Let's use the compound interest formula.

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

We know A=6700

P=3000

r =0.0675

n=2(because compounded semiannually)

t =?( we need to find it)

Plug in the known values into the formula.

$6700=3000(1+\frac{0.0675}{2}) ^{2*t}$

Simplify and solve for 't'

Divide both sides by 3000

$2.23333= (1.03375)^{2t}$

Take log on both sides

$log(2.23333) = 2t log(1.03375)$

Divide both sides by log(1.03375)

24.2067=2t

Divide both sides by 2.

t=12.10...

To round to nearest 10th, we get t=12.1 years.

3 0

3 years ago

Find the area of the parallelogram

ad-work [718]

22.4 × 10.2 ÷2 = 220.8÷2=110.4

8 0

4 years ago

Can you help me answer this question

r-ruslan [8.4K]

Division of a fraction is the equivalent of multiplying by its reciprocal
ex.
$\frac{\frac{A}{B} }{\frac{C}{D}}=\frac{A}{B} *\frac{D}{C}$
i suggest you try to remember this concept

in terms of your question

$\frac{\frac{4c-12}{4c+8}}{\frac{c-3}{c^2-4}}= \frac{4c-12}{4c+8} *\frac{c^2 -4}{c-3}$

from this point, just multiple the numerators together and denominators together, then simplify if necessary

fyi- difference of squares
$x^2-b^2 = (x-b)(x+b)$
relating that to
$c^2-4 = c^2 -2^2 = (c-2)(c+2)$

also a side note, you might want to factor out the 4 first in the top fraction

4 0

4 years ago