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saveliy_v [14]
2 years ago
12

If the sum of two angles is 180°,then each is the___of the other​

Mathematics
1 answer:
GREYUIT [131]2 years ago
4 0

Step-by-step explanation:

"If the sum of 2 angles is 180°, then each is the supplementary angle of the other".

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The measure of angle A is 30 and the measure of angle B is 124 . What is the measure of angle C in degrees?
professor190 [17]

Answer: 26


124 + 30 = 154

180 - 154 = 26


7 0
3 years ago
Jimmy set his score for his math test. After the math teacher returnee his paper to him, he realized that if he increased his ta
mixer [17]
When ever you have percentages, it should be helpful to bear in mind you can express them as multipliers. In this case, it will be helpful.
So, if we let:
a = test score
b = target score
then, using the information given:
a = 1.1b + 1
a = 1.15b - 3
and we get simultaneous equations.
'1.1' and '1.15' are the multipliers that I got using the percentages. Multiplying a value by 1.1 is the equivalent of increasing the value by 10%. If you multiplied it by 0.1 (which is the same as dividing by 10), you would get just 10% of the value.
Back to the simultaneous equations, we can just solve them now:
There are a number of ways to do this but I will use my preferred method:
Rearrange to express in terms of b:
a = 1.1b + 1
then b = (a - 1)/1.1
a = 1.15b - 3
then b = (a + 3)/1.15
Since they are both equal to b, they are of the same value so we can set them equal to each other and solve for a:
(a - 1)/1.1 = (a + 3)/1.15
1.15 * (a - 1) = 1.1 * (a + 3)
1.15a - 1.15 = 1.1a + 3.3
0.05a = 4.45
a = 89

8 0
3 years ago
A carpenter purchased 70ft of redwood and 70ft of pine for a total cost of $282. A second purchase, at the same prices, included
dedylja [7]
I think the answer is $2.01 per 1ft of redwood and pine

282/2
=141

$141/70ft ÷ 70/70
=$20.1 per 1ft
7 0
3 years ago
What is the first integer to the right of 0 on the number line
Nesterboy [21]

Answer:

1

Step-by-step explanation:

Numbers to the "right of 0" implies the positive numbers.  And an integer has no fractional component.  Thus, the first integer to the right of 0 would be 1.

Cheers.

4 0
3 years ago
Marisol scored 80% on her math test. The test had 45 questions, and each question was worth the same amount of the final score.
vampirchik [111]

Answer:

She answered 36 questions correctly out of the 45 questions.

6 0
2 years ago
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