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ipn [44]
3 years ago
12

Pls help I’ll brainlest

Mathematics
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:

D looks to be the only good solution.

Step-by-step explanation:

19.8 is roughly 20

9.8 is roughly 10, so 1.1 represents 1.10 which is increased by 10%

5.1 is still around 5, & 1.05 is 1 increased by 5%

Very rough estimate will be given.

Hope this helps. :0)

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Each big square is cut into 3 parts to represent multiplying by one-third. The number of small shaded squares in the circled par
sammy [17]

Answer:the answer is 5/9

Step-by-step explanation:

8 0
3 years ago
3/5t−4−7/10t=−2 what the value of t
Marysya12 [62]
Hello there.

<span>3/5t−4−7/10t=−2

t=-20</span>
8 0
3 years ago
How to solve and answer for the question
Paul [167]

5

Step-by-step explanation:

AB=CD (Opposite sides of a parallelogram are equal)

11x-13=42

11x=42+13

11x=55

x=55/11

x=5

6 0
3 years ago
One supplementary angle is 15 degrees less than twice the other. Find the measure of the two supplementary angles.
o-na [289]

Hey there!

To find our answer, we need to set up a <u><em>system of equations. </em></u>Remember, <u><em>supplementary angles</em></u> equal 180 degrees when combined. We will call one of our angles A and the other one B. Let's set it up below! :)

A=2B-15 (one angle is 15 degrees less than twice the other)

A+B=180

We need to find one of our variables. To do this, we only put one variable in the equation. But how, there are two variables in both equations! Well, as you can see, we see the A is equal to 2B-15, so we can take 2B-15 and put it into the second equation in place of A because it is equal to A, and then we will only have Bs and we can solve for it. This method is known as solving systems of equations with <u><em>substitution.</em></u>

Let's solve with substitution!

2B-15+B=180

3B-15=180              We combine our Bs.

3B=195              We add 15 to both sides.

B= 65                We divide both sides by three.

Now, we need to find what A is, but this will be really easy to do! If you remember, our angles are supplementary, so when you combine them, we will get 180, as you can see in our second equation in our first system of equations. So, we simply subtract 65 from 180.

180-65=115

Our two angles are 65° and 115°.

We can also check this with the original problem.

If you double 65, we have 130. Then, if we subtract 15, we have 115. Systems of equations are a pretty awesome way to figure this out!

I hope this helps! Have a great day!

5 0
2 years ago
If two measurements have the same number of decimal
Lera25 [3.4K]

Answer:

Yes.

Step-by-step explanation:

Yes, it is possible. For example, 0.2 and 0.2 both have one decimal place and one significant digit. Their product, 0.04, has one significant digit, but has 2 decimal places.

3 0
2 years ago
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