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olga55 [171]
3 years ago
5

HELPP PLEASEEEE ANYONE!!

Mathematics
1 answer:
Wewaii [24]3 years ago
4 0

Answer:

kathryn= 6 years old

her mother= 38 years old

Step-by-step explanation:

kathryn=x

mother= x²+2

x²+2 +x=44

x=6

kathryn= 6 years old

her mother= 38 years old

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A sporting goods stores sells footballs, basketballs, and volleyballs. A football costs $35, a basketball costs
wlad13 [49]

Answer:

The number of footballs, basketballs and volleyballs were sold are 75, 36 and 15 respectively.

Step-by-step explanation:

Consider the provided information.

A football costs $35, a basketball costs $25  and a volleyball costs $15.

Let F represents the football, B represents the basketball and V represents the volleyball.

On a given day, the store sold 5 times as many footballs as volleyballs.

F=5V......(1)

They  brought in a total of $3750 that day,

35F+25B+15V=3750......(2)

The money made from basketballs alone was 4 times the money.

25B=4(15V)......(3)

By equation 1, 2 and 3.

35(5V)+4(15V)+15V=3750

250V=3750

V=15

Substitute the value of V in equation 1 and 3.

F=5(15)=75

25B=4(15\times 15)\\B=36

Hence, the number of footballs, basketballs and volleyballs were sold are 75, 36 and 15 respectively.

8 0
3 years ago
Arithmetic and geometric series -Find the sum of the first 50 terms of the following series, to the nearest integer.
grandymaker [24]

Answer:

<h3>             10,450</h3>

Step-by-step explanation:

21-13=8   and   29-21=8

So this is aritmetic series where a₁ = 13, and r = 8

Sum of the first n terms:  

S_n=\dfrac{a_1+a_n}{2}\cdot n=\dfrac{a_1+a_1+(n-1)r}{2}\cdot n=\dfrac{2a_1+(n-1)r}{2}\cdot n\\\\\\S_{50}=\dfrac{2\cdot13+(50-1)\cdot8}{2}\cdot50=(13+49\cdot4)\cdot 50=10,450

5 0
3 years ago
A right triangle has sides 5.0 m, 12 m, and 13 m. the smallest angle of this triangle is nearest:
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6 0
3 years ago
Find the value of nif 2n=1​
hram777 [196]

Answer:

n=0.5

Step-by-step explanation:

2 times 0.5 = 1

5 0
3 years ago
Read 2 more answers
Find the interior angle sum for the following polygon
Brrunno [24]

Answer:

Polygon Name  

Number of Interior Angles  

Sum of Interior Angles = (n-2) x 180°  

Triangle  

3  

180°  

Quadrilateral  

4  

360°  

<u><em> Pentagon  </em></u>

<u><em> 5  </em></u>

<u><em> 540°  </em></u>

Hexagon  

6  

720°

Step-by-step explanation:

4 0
3 years ago
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