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allsm [11]
3 years ago
15

What's the distributive property when solving the equation 7(x+5)-x=42

Mathematics
1 answer:
Marysya12 [62]3 years ago
7 0
When you are doing distributive property, it can only happen if a number or exponent is before the bracket. From this equation, you can solve for x like so:

7(x+5)-x=42

7x+35-x=42 -Using distributive property (Multiplication)

6x=7 -Collecting like terms.

x= 7/6 -The answer.

Therefore x would equate to 7/6.
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When you graduate college at the age of 20, you want to start saving up for retirement. If your investment pays a fixed APR of 9
Dominik [7]

<u>Answer-</u>

<em>You need to deposit $337.62 each month, to reach this goal.</em>

<u>Solution-</u>

We know that,

\text{FV of annuity}=P[\frac{(1+r)^n-1}{r}]

Where,

P = periodic payment

r = rate per period

n = number of period

Here,

FV\ of\ annuity=2,500,000,\\\\P=?,\\\\r = 9\%\ annually=\frac{9}{12}\%\ monthly=\frac{9}{1200}\ monthly\\\\n=45\ years=45\times 12=540\ months

Putting the values,

\Rightarrow 2500000=P[\frac{(1+\frac{9}{1200})^{540}-1}{{\frac{9}{1200}}}]

\Rightarrow P=\frac{2500000}{[\frac{(1+\frac{9}{1200})^{540}-1}{{\frac{9}{1200}}}]}

\Rightarrow P=\frac{2500000}{\frac{56.5365-1}{0.0075}}

\Rightarrow P=\frac{2500000}{\frac{55.5365}{0.0075}}

\Rightarrow P=337.62


4 0
3 years ago
Read 2 more answers
Amelia and Elliott are collecting empty soda cans for recycling. Amelia has 13 less than 5 times the cans that Elliott has. Toge
sleet_krkn [62]

ANSWER

Find out the  how many cans does each one have.

To proof

As given

Amelia and Elliott are collecting empty soda cans for recycling

Amelia has 13 less than 5 times the cans that Elliott has.

let us assume that the  Elliott has can be =x

Amelia can = 5x -13

Total can = 257 cans

than the equation becomes

x + 5x - 13 = 257

6x = 257 +13

6x = 270

x = 45

Elliott has can be = 45cans

Amelia can = 5 × 45 - 13

                   =  212cans

Hence proved




5 0
4 years ago
In △ABC, m∠A=27 °, c=14 , and m∠B=25 °. Find a to the nearest tenth.
Gnesinka [82]

Answer:

a = 8.1

Step-by-step explanation:

Firstly, since we have a triangle, automatically, we have 3 interior angles

Mathematically the sum of these angles = 180

A + B + C = 180

27 + 25 + C = 180

52 + C = 180

C = 180-52

C = 128

We use the sine rule to find a

The sine rule posits that the ratio of a side to the sine of the angle facing that side is equal for all the sides of a triangle

Thus, mathematically according to the sine rule;

c/Sin C = a/Sin A

14/sin 128 = a/sin 27

a = 14sin27/sin 128 = 8.0657

which to the nearest tenth is 8.1

3 0
4 years ago
Which is equivalent to 12=4x-Y
Valentin [98]
Missing informations but this can be turned into y=4x-12
6 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs. Match each function to its domain and range.f(x)=5x-3
Viktor [21]

f(x) is a linear function, so both the domain and the range are the set of real numbers.

5 0
2 years ago
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