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slega [8]
3 years ago
12

Can someone help me solve this problem​

Mathematics
2 answers:
uranmaximum [27]3 years ago
6 0

Answer:

18 and 40

Step-by-step explanation:

Let x be the age of Claire and y the age of her mother

Claire's mother is 4 years more than twice Claire's age

  • y = 2x+4

The sum of their ages are is 58

  • x+y = 58

the system is:

\left \{ {{y=2x-4} \atop {y+x=58}} \right.  

Multiply (y+x = 58) by -1 and then add it to (y = 2x+4) to eliminate y

  • -y-x = -58
  • -y-x+y = 2x+4-58
  • -x -2x = -54
  • -3x = -54
  • x = 54/3
  • x = 18

y= 58-18 = 40

so claire's mother is 40 years old and claire is 18

Varvara68 [4.7K]3 years ago
5 0
The answer is 18 and 4
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Elkins Pointe basketball team purchased equipment and uniforms for a total cost of $912. The equipment cost$612 and the uniforms
otez555 [7]

Answer:

Total cost of equipment was $612. The remaining amount was spent on uniforms.

To find out how many uniforms were purchased,

Total cost of uniforms

=$912-$612

=$300

Number of uniforms purchased

=

$

300

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Step-by-step explanation:

8 0
3 years ago
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What is (3 + 12) - 3² + 8 · 2 ÷ 4 ?<br> (please show how/ show work)
lisov135 [29]

Answer:

10

Step-by-step explanation:

(3 + 12) - 3² + 8 · 2 ÷ 4

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8 0
3 years ago
The roof of one building is 400 feet below the roof of another building. A person standing on the lower roof sees another person
m_a_m_a [10]

The distance between the two buildings is 844.23 feet apart, we go this answer by simply applying the SOH CAH TOA method

<h3>Trigonometry</h3>

Given Data

  • Height of Building A (Opp) = 400 feet
  • Angle of Elevation θ = 35°
  • Distance between the buildings Adj = ??

Applying the SOH CAH TOA Approach we have

Tan  θ = Opp/Adj

Substituting our given data we have

Tan 35 = 400/x

0.4738 = 400/x

make x subject of the formula we have

x = 400/0.4738

x = 844.23 feet

learn more about trigonometry here:

brainly.com/question/24349828

7 0
2 years ago
ILL BRAINLIEST YOU IF YOU PLEASE HELP ME
goblinko [34]

Answer:

11.313708498984760390413509793678 (round that)

Step-by-step explanation:

use pythag thorem, a^2 + b^2= c^2

a is 8 and b is 8 so square both and add them 64+64= 128

then take square root of 128 to find length c

and you get 11.313708498984760390413509793678

you are welcom

6 0
3 years ago
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