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alexira [117]
4 years ago
10

Write an equation to describe the situation and then solve.

Mathematics
2 answers:
sammy [17]4 years ago
4 0
HE was planning to pay 30$ but it ended up as 60$ so in that case it´s 42$.

FrozenT [24]4 years ago
4 0
Simple...

you have: The gift costs $60  

Simon hs $18-->>>

18+2x=60

18+2x=60
-18       -18

2x=42

x=21

Maurice originally planned to pay $21.

Thus, your answer.
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There are 10 blue marbles, 4 black marbles, 5 white marbles, and 6 red marbles in a box. If two marbles are drawn at random with
Nikitich [7]

Answer:

7/20

Step-by-step explanation:

10 blue marbles, 4 black marbles, 5 white marbles, and 6 red marbles = 25 marbles

25-10 = 15

There are 15 not blue marbles

P( not blue ) = not blue marbles / total = 15/25 = 3/5

keep the not blue marble

25-1 = 24 marbles left

15-1 = 14 not blue marbles

P( not blue ) = not blue marbles / total = 14/24 = 7/12

P( not blue, keep, not blue) = 3/5 * 7/12 = 21/60 = 7/20

6 0
4 years ago
Read 2 more answers
help please!! find the area of each triangle. round intermediate values to the nearest tenth. use the rounded values to calculat
White raven [17]

Area of a triangle = (1/2)*base*height

For both of the triangles, you have the base (8.8 for the triangle on the left, 7.6 for the triangle on the right) and the side lengths, but not the height. But since both are isosceles triangles, you can find the height using the pythagorean theorem.

5.

First divide the triangle vertically into two triangles (see attached picture). Now you have two right triangles, you can apply the pythagorean theorem on either one of them to find the height. The pythagorean theorem says that for a right triangle, a^2+b^2=c^2, where c is the hypotenuse and a and b are the sides of the triangle.

Substituting the given values and rounding to nearest tenth:

a^2+b^2=c^2\\4.4^2+h^2=10^2\\h=9.0

Now that you have the height, you can find the area of the entire triangle.

A = (1/2)*base*height

A = (1/2)*8.8*9.0 = 39.6

6.

Same procedure.

a^2+b^2=c^2\\3.8^2+h^2=10^2\\h=9.2

A = (1/2)*base*height

A = (1/2)*7.6*9.2 = 35.0

7 0
3 years ago
What is 1/6 plus 1/3 plus 1/2 equals to?
Scorpion4ik [409]
1/6 + 1/3 + 1/2 is 1
first u need to find the GCF which is 6 here
convert all the denominators to 6
1/6 + 2/6 + 3/6
when you add them all together u get 6/6 which is also equivalent to 1
4 0
3 years ago
Read 2 more answers
Rewrite 2/4 : 1/8 as a unit rate WILL GIVE BRAINLIEST
photoshop1234 [79]
This is a fraction equal to
2 1 ÷ 4 8

We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 4

2 1 ÷ 4
4 8 ÷ 4
=
0.5 1
1 8
=
0.5 1
8
= 0.5 1 per 8
6 0
3 years ago
Sales at an auto part store decreased 20.5% this month compared to last month.If sales this month were $75,366 what were the sal
elena-14-01-66 [18.8K]

Answer:

I believe the sales would be: 90816.03

Step-by-step explanation:

20.5 % of 75.366 is 15450.03

75366 + 15450.03 = 90816.03

8 0
4 years ago
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