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Andru [333]
4 years ago
15

A brush cost $2 more than a comb. The brush and come together cost $3.78. Find the cost of each

Mathematics
2 answers:
Anuta_ua [19.1K]4 years ago
7 0
So:
brush = comb+2

Total: comb + (comb+2) = 3.78 
2 * comb + 2 = 3.78  /-2
2 * comb = 1.78 /divide by 2
comb = 0.89

brush = 0.89 + 2 = 2.89
Ymorist [56]4 years ago
4 0
3,78-2=1.78
1.78/2=0.89
0.89+2=2.89
cepillo=2.89
peine=0.89
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A triangle has one side length of 12 inches and another of 8 inches. Describe all possible lengths of the third side.
jasenka [17]

Answer:

The possible lengths of the third side is all real numbers greater than 4 inches and less than 20 inches

Step-by-step explanation:

we know that

<u>The Triangle Inequality Theorem</u>. states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side

Let

x -----> the possible lengths of the third side

Applying the Inequality Theorem

1) 12+8 > x

20 > x

Rewrite

x < 20 in

2) 8+x > 12

x> 12-8

x > 4 in

therefore

4 in < x < 20 in

The possible lengths of the third side is all real numbers greater than 4 inches and less than 20 inches

3 0
3 years ago
(02.04 LC)
Georgia [21]

Answer:

x = - 1

Step-by-step explanation:

the equation of a vertical line is

x = c

where c is the value of the x- coordinates the line passes through

the line passes through the x- intercept of - 1 , then

x = - 1 ← equation of vertical line

7 0
1 year ago
Two angles are complementary. One has a measure of 25 degrees. What is the measure of the other angle?
Pani-rosa [81]

Answer:

65 degrees

Step-by-step explanation:

Since complementary angles are 2 angles that add up to 90 degrees, all you have to do is subtract 25 from 90.

When you do that you get 65.

Example: 90 - 25 = 65

8 0
3 years ago
Whats the domain? someone pleaseee
ziro4ka [17]
-infinity, positive infinity
8 0
3 years ago
981 rounded to nearest 100
sergey [27]

Answer: 1000

Step-by-step explanation:

     9         8       1

Hundred tens one

The question is asking for to round to the nearest hundred (100) which means is rounding to [9] in this question.

The number of the place before the hundreds place is [8] on the tens place.

  • When numbers are greater than or equal to 5, you round up a digit.
  • When numbers are less than 5, you round down a digit.

[8] is greater than 5, so you round 9 up. When rounding 9 up, you get 10.

<h2>So, the final number will be 1000</h2>
6 0
3 years ago
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