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fredd [130]
3 years ago
11

Sophia is 6 years older than her brother Eric. The sum of their ages is 28

Mathematics
1 answer:
Step2247 [10]3 years ago
7 0

Answer:

Sophia is 17 years old. Sophia's brother is 11 years old.

Step-by-step explanation:

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What is the correct answer and why show your work
Anna11 [10]

Answer:

A7.45x = y

Step-by-step explanation:


We can use a ratio to solve this problem.  Take the total cost of the lunches and divide by the number of lunches.

y = total cost of lunches and

x = number of lunches

74.50             y

-------------- = ------------

10                     x


Using cross products

74.5 x = 10 y

Divide each side by 10

74.5/10 x= 10y/10

7.45x = y


6 0
3 years ago
Read 2 more answers
1. Find the volume of a cone with a diameter of 14 cm and a height of 25 cm.
slega [8]

Answer:

V≈1282.82

Step-by-step explanation:

V=πr^2h

3=π·72·25

3≈1282.817

8 0
2 years ago
Zeros:-3,0,4 degree:3
makkiz [27]
(X+3)(x)(x-4)

Hope that helps :)
5 0
3 years ago
Plzzz hurry up and help me if A+B=45<br>prove that <br>(1+tanA)(1+tanB)=2​
Solnce55 [7]

Answer:

see explanation

Step-by-step explanation:

If A +B = 45° then tan(A+B) = tan45° = 1

Expanding (1 + tanA)(1 + tanB)

= 1 + tanA + tanB + tanAtanB → (1)

Using the Addition formula for tan(A + B)

tan(A+B) = \frac{tanA+tanB}{1-tanAtanB} = 1 ← from above

Hence

tanA + tanB = 1 - tanAtanB ( add tanAtanB to both sides )

tanA + tanB + tanAtanB = 1 ( add 1 to both sides )

1 + tanA + tanB + tanAtanB = 2

Then from (1)

(1 + tanA)(1 + tanB) = 2 ⇒ proven

7 0
3 years ago
NEED HELP ASAP!!!<br><br> Write 18/7 as a mixed number
Kryger [21]

Answer:

Your answer is 2 4/7.

Step-by-step explanation:

Hope this helps!

7 0
2 years ago
Read 2 more answers
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