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bekas [8.4K]
3 years ago
12

15. Solve for the specified variable: - х + 7 8 - 10; for y.

Mathematics
1 answer:
Andreyy893 years ago
3 0

Answer:

y=80-\frac{8x}{7}

Step-by-step explanation:

15). Given equation is,

     \frac{x}{7}+ \frac{y}{8}=10

     Multiply the equation by 8,

     8(\frac{x}{7}+ \frac{y}{8})=10\times 8

     \frac{8x}{7}+y=80

     Subtract \frac{8x}{7} from both the sides of the equation,

     \frac{8x}{7}+y-\frac{8x}{7}=80-\frac{8x}{7}

     y=80-\frac{8x}{7}

     Therefore, value of the variable 'y' will be,

     y=80-\frac{8x}{7}

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7
Sergeeva-Olga [200]

Answer:

Bank A

Step-by-step explanation:

We find the Simple Interest for each Bank

Bank A

A savings account at bank A earns 5%

simple interest.

Where

P = $5,000.00

R = 5%

T = 2 years

Compound quarterly = 4

First, convert R percent to r a decimal

r = R/100

r = 5%/100

r = 0.05 per year,

Then, solve our equation for A

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

A = 5,000.00(1 + 0.0125/4)(4)(2)

A = $ 5,522.43

A = P + I where

P (principal) = $ 5,000.00

I (interest) = $ 522.43

For Bank B

P = $5,000.00

R = 4%

T = 2 years

Compound quarterly = 4

First, convert R percent to r a decimal

r = R/100

r = 4%/100

r = 0.04 per year,

Then, solve our equation for A

A = P(1 + r/n)nt

A = 5,000.00(1 + 0.01/4)(4)(2)

A = $ 5,414.28

A = $ 5,414.28

A = P + I where

P (principal) = $ 5,000.00

I (interest) = $ 414.28

Therefore, the bank that would give Gabriel more interest is Bank A

5 0
3 years ago
Suppose that you have declared a numeric array named numbers, and two of its elements are numbers[1] and numbers[5]. you know th
mart [117]

Answer:

In the scenario in which you have declared a numeric array named numbers, and two of its elements are numbers[1] and numbers[5] you know that numbers[1] is smaller than numbers[5] and that there are exactly three elements between those two elements. Correct answer: a and c.

numbers[i] is the  element of the array called numbers

Step-by-step explanation:

5 0
3 years ago
Help with this question​
Delvig [45]

Answer:

a is 1260, b is 6216, c is 8736

5 0
3 years ago
Evaluate the expression. -27 – 9 – 33 (Hint: Evaluate means solve)
Schach [20]

<u><em>Answer: ⇒ -69</em></u>

____________________________________________________

Step-by-step explanation:

I gave you a hint: ⇒ You had to used their pemdas to order of operations.

P-Parenthesis

E-Exponents

M-Multiply

D-Divide

A-Add

S-Subtract

First you had to add and subtract from left to right.

-27-9=-36

-36-33

=-69

_________________________________________________________

Hope this helps!

Thank you for posting your question at here on brainly.

Have a great day!

_____________________________________________________


4 0
3 years ago
Read 2 more answers
A controlled satellite is known to have an error (distance from target) that is normally distributed with mean zero and standard
slamgirl [31]

Answer:

the probability that the satellite fails is 0.0124

Step-by-step explanation:

The manufacturer of the satellite defines a success as a firing in which the satellite comes within 10 feet of the target.

This means that success has the \frac{10}{4}=2.5 standard deviations range in the error distribution.

Z-scores of the Ranges not within -2.5 and 2.5 can be considered as fail and the probability of this is:

P(z>2.5) + P(z<-2.5) = 2 × P(z>2.5) = 2 × 0.0062 = 0.0124

4 0
4 years ago
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