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3 years ago

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Amy has two older brothers. Ben is 3 years older than Amy. Chris is 10 years older than Ben. The total of their ages is 73. Form

an equation and use it to work out Amy's age.

2 answers:

Alex787 [66]3 years ago

6 0

73-(10+3)=60 you have to add 7 and 3 first, then you subtract it from 73

grigory [225]3 years ago

6 0

Amy's age=x
ben's age=x+3
chris' age=x+3+10
x+x+3+x+3+10=73
3x+16=73
3x=73-16
3x=57
x=19
Amy is 19 years old

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Help! I’ll give you the best rating

fenix001 [56]

Sandi did not follow PEMDAS. She added before multiplying and dividing. Her answer should be 18 because 6 • 4 = 24, 2 / 2 = 1, 24 + 1 = 25, 25 - 7 = 18

3 0

3 years ago

Will give brainliest

dmitriy555 [2]

Answer:

<h2><em><u>18</u></em></h2>

Step-by-step explanation:

<em><u>Given</u></em><em><u>, </u></em>

Radius of the cylinder = 3cm

Height of the cylinder = 3cm

<em><u>Therefore</u></em><em><u>, </u></em>

Lateral surface area of the cylinder

$= 2\pi rh$

$= 2\pi \times 3 \times 3 {cm}^{2}$

$= 2\pi \times 9 {cm}^{2}$

$= 18\pi {cm}^{2}$

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>The</u></em><em><u> </u></em><em><u>required</u></em><em><u> </u></em><em><u>value</u></em><em><u> </u></em><em><u>in</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>green</u></em><em><u> </u></em><em><u>box</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>be</u></em><em><u> </u></em><em><u>18</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em>

4 0

3 years ago

Read 2 more answers

Consider U = {x|x is a real number}. A = {x|x ∈ U and x + 2 > 10} B = {x|x ∈ U and 2x > 10} Which statements are true? 5 ∉

-Dominant- [34]

x+2 > 10 solves to x > 8 after we subtract 2 from both sides

So set A is the set of real numbers that are larger than 8. The value 8 itself is not in set A. The same can be said about 5 as well.

Set B is the set of values that are larger than 5 since 2x > 10 turns into x > 5 after dividing both sides by 2. The value x = 5 is not in set B since x > 5 would turn into 5 > 5 which is false. The values x = 6, x = 8, and x = 9 are in set B.

----------------

Summarizing everything, we can say...

5 is not in set A. True

5 is in set B. False

6 is in set A. False

6 is not in set B. False

8 is not in set A. True

8 is in set B. True

9 is in set A. True

9 is not in set B. False

5 0

3 years ago

Read 2 more answers

You buy milk that contains 180 calories per 2 cups. Use a ratio table to find the number of calories in 5.5 cups.

Ludmilka [50]

Answer:

The number of calories in 5.5 cups are <u>495</u>.

Step-by-step explanation:

Given:

You buy milk that contains 180 calories per 2 cups.

Now, to find the number of calories in 5.5 cups.

Let the number of calories in 5.5 cups be $x.$

As, in 2 cups there are 180 calories.

2 cups is equivalent to 180 calories.

Thus, the ratio would be $2:180.$

So, in 5.5 cups there are $x$ calories.

5.5 cups is equivalent to $x$ calories.

Thus, the ratio would be $5.5:x.$

Now, we set proportion to get the number of calories in 5.5 cups:

$2:180::5.5:x$

$\frac{2}{180} =\frac{5.5}{x}$

<em>By cross multiplying we get:</em>

$2x=990$

<em>Dividing both sides by 2 we get:</em>

$x=495$ .

Therefore, the number of calories in 5.5 cups are 495.

4 0

4 years ago

Why would you even ask this ._.

oee [108]

Answer:

Ask something & it will be answered

Step-by-step explanation:

7 0

3 years ago