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2 years ago

Maggie's brother is 10 years younger than twice her age. The sum of their ages is 32.

Mathematics

1 answer:

mixas84 [53]2 years ago

5 0

Answer:22

Step-by-step explanation:

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Alexandra and Austin applied to the same university. They looked up the average SAT score of students admitted to that universit

Deffense [45]

Answer:

x= (y+40)-(y-330)

Step-by-step explanation:

According to the information provided, the difference in their scores would be the result of subtracting Austin's SAT score from Alexandra's SAT score.

Then, as Alexandra's SAT score was 40 points above the average score this means that you have to add 40 to the average score to get her result. Also, as Austin's SAT score was 330 points below the average score, this means that you have to subtract 330 from the average score. With this you can write the expression:

x= difference in their scores

y= average score

x= (y+40)-(y-330)

7 0

2 years ago

Drag each equation to show if it could be a correct first step to solving the equation

Vlad [161]

Tell me what the answer

4 0

3 years ago

Read 2 more answers

Giselle's youth club sells cookies to fund their trips and activities. Each year they need to earn $1,247 from selling cookies.

algol [13]

Price per box, P = $1.45 .

Money left, M = $1247 - $472.70 = $774.3 .

Let, number of boxes are x.

So,

$x = \dfrac{774.3}{1.45}\\\\x = 534\ boxes$

Therefore, they have to sell 534 more boxes.

Hence, this is the required solution.

6 0

3 years ago

The veloctiy of sound in air is given by the equation v=20 times the square root of 273+t where v is the velocity in meters per

Nikitich [7]

So we just need to plug in our values and solve
$v = 20 \sqrt{273 + t}$
we are given v is 369 so we have
$369 = 20 \sqrt{273 + x}$
now we solve for x.
divide both sides by 20
square both sides
subtract 273 from both sides
$369 = 20 \sqrt{273 + x} \\ 18.45 = \sqrt{273 + x} \\ 340.40 = 273 + x \\ x = 67.4$
so a temp of about 67 degrees C

5 0

2 years ago

Read 2 more answers

To counteract the frog population spike, the parks department has decided to introduce a large number of predator fish into thei

tekilochka [14]

Answer:

1.2 x 10⁴

Step-by-step explanation:

12,000 has 2 places of other numbers before a spam of zeroes.

Take the numbers before zeroes and put a decimal to the left of the last digit.

Last digit is 2 so a decimal goes before 2

1.2

Count how many places the decimal moved: this number is your power of 10.

12000. --> 1.2000

It moved 4 places.

12,000 = 1.2 x 10⁴

6 0

3 years ago