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mihalych1998 [28]
3 years ago
10

15z + 3y = 21 Solve the formula for y

Mathematics
2 answers:
natta225 [31]3 years ago
8 0
The answer is y= 2 you can also use the app photomath
Sveta_85 [38]3 years ago
3 0
Answer:
y = 2

Explanation: z must be equal to 1, and 3x2 is equal to 6. 15+6= 21
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Explain why a positive times a negative is a negative number.
prohojiy [21]

Explanation:

This can be explained by thinking numbers on the number line as:

Lets take we have to multiply a positive number (say, 2) with a negative number say (-3)

<u>2×(-3)</u>

Suppose someone is standing at 0 on the number line and to go to cover -3 , the person moves 3 units in the left hand side. Since, we have to compute for 2×(-3), The person has to cover the same distance twice. At last, he will be standing at -6, which is a negative number.

A image is shown below to represent the same.

<u>Thus, a positive times a negative is a negative number.</u>

8 0
3 years ago
Mario invested $5100 at 13%
cestrela7 [59]

Answer:

Amount = $6614 and 19 cent

Step-by-step explanation:

Formula for compound interest is

A= p(1+r/n)^(nt)

Compounded daily

So n= 365*2= 730

T= 2

r= 0.13

P= 5100

A= p(1+r/n)^(nt)

A= 5100(1+0.13/730)^(730*2)

A= 5100(1+1.78082*10^-4)^(1460)

A= 5100(1.000178082)^1460

A= 5100(1.2969)

A= 6614.19

Amount = $6614 and 19 cent

6 0
3 years ago
Given that ​f(x) = x + 4 and ​g(x)​ = x^{2} - x, find ​(f​ + g)(​5), if it exists.
user100 [1]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the x-intercept and y-intercept of the line.<br> 3x + y = 6
Dafna1 [17]

Answer:

x = (6 - y)÷ 3

Step-by-step explanation:

3x + y = 6

3x = 6 - y

x = 6 - y ÷ 3

6 0
3 years ago
NEED ANSWERS ASAP PLEASE
weqwewe [10]

Answer:

72

Step-by-step explanation:

u can see its a right triangle u can see its kinda like 3-4-5 right triangle

75/5 = 15

21/3 = 7

ok so it doesn't work

now

75^2 - 21^2 = 5184

square root of 5184 = 72

3 0
3 years ago
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