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Dennis_Churaev [7]
3 years ago
9

A boy is 6 years older than his sister. In three years time he will be twice her age. What

Mathematics
1 answer:
Masja [62]3 years ago
3 0

Answer:

12 years old

18-6=12

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S - 10,000 = 3,753<br><br>A. s = 13,573<br><br>B. s = 13,753<br><br>C. s = 10,375
Lesechka [4]

Answer:

B. s = 13753

Step-by-step explanation:

s - 10000 = 3753

To find value of s, add both sides by 10000

s - 10000 = 3753

   +10000    +10000

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

s = 13753

6 0
3 years ago
Find the value of x and y
vova2212 [387]

let's first off take a look at the <u>tickmarks</u>, three <u>side tickmarks</u>, so all those 3 sides are equal, all have a length of y - 25, so is an equilateral triangle.

there are two <u>angle tickmarks</u>, meaning those two angles are equal, wait a second! if those two angles are equal, that means is an isosceles triangle.

now, in an equilateral triangle, all sides are equal, but also all angles are equal, since the sum of all interior angles is 180°, then each angle is really 60°.

let's notice that angle on the upper-left-corner, is a right-angle, but 60° are on the equilateral triangle, and so the remaining 30° must be on the isosceles triangle.

the isosceles triangle has then a vertex of 30°, and twin angles, the twin angles let's say are each a° so then

30° + a° + a° = 180°

30 + 2a = 180

2a = 150

a = 75° = y

now, let's recall, the isosceles triangle has twin angles but it also has twin sides, so the side "x" and the side with the tickmark are equal.

well, we know that y = 75, so the sides with the tickmark are then (75) - 25 = 50 = x.

5 0
3 years ago
Mariko needs about 18 wheelbarrows full of stone for her Japanese garden. Her wheelbarrow has vertical sides with the given shap
zlopas [31]

Answer:

I don't know yet haheuehehheejejejej

3 0
3 years ago
What is the difference? Write the number. 60 - 20=
frosja888 [35]
It would be 40.

60 minus 20 = 40

Difference means subtraction
5 0
3 years ago
Read 2 more answers
Sorry for annoying you guys just need answers
anzhelika [568]
What type of math is this??? Geometry? Algebra?
7 0
2 years ago
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