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3 years ago

I need to solve for the question mark. Please help

Mathematics

1 answer:

Bogdan [553]3 years ago

5 0

Answer:

The answer to the question mark is 95°

Step-by-step explanation:

First let's look at the 155°:

Since a straight line is automatically 180°, to find the other side of the length (aka one of the missing parts of the triangle), you would do 180-155. You will then get 35 as your answer.

Using that same 35 number:

Now, in a triangle, the total number of degrees in ALL triangles is 180 NO MATTER WHAT! Since we now have two angles, we just need to add them together and subtract by 180. 35 + 60 = 95. 180-95 = 85.

Now for the ? mark:

Remember when I said that a straight line equals 180? Well, now that we have one side of the line, (85), all we need is the other. 180-85=95. Therefore, the answer is 95°.

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Mrs. Zamir has $\fbox{\bf\$8.8}$ left to buy eraser.

Further explanation :

Multiplication is a mathematical operation such that two real numbers are performed in such a way that they derive a third number called product.

For example:

There are two numbers $4{\text{ and 5}}$ then multiply both the numbers as,

$4\times5=20$

Therefore, 20 is the product of 4 and 5.

It is given that Mrs. Zamir wants to buy 8 protractors and some erasers for her classroom.

She has total $\$30$ .

If the price of the protractor is $\$2.65$ each.

Therefore, she spends total amount of money on protractor can be calculated by multiplying 8 protractors by 2.65 as,

$\begin{aligned}n&=8\times2.65\\&=21.2\\\end{aligned}$

Thus, she spends $\$21.2$ on protractors.

Now, she has total $\$30$ and $\$21.2$ she spends on protractors.

Therefore, she left with the amount $r$ as,

$\begin{aligned}r&=30-21.2\\&=8.8\\\end{aligned}$

Therefore, she has $\fbox{\bf\$8.8}$ amount left for eraser.

Learn more :

1. Problem on the whole numbers are positive integers brainly.com/question/1852063.

2. Problem on the adding and simplifying the numbers brainly.com/question/894273.

3. Problem on the general form of the equation of the circle brainly.com/question/1506955.

Answer details:

Grade: Junior school

Subject: Mathematics

Chapter: Multiplication and division

Keywords: Mrs. Zamir, protractors, erasers, cost, multiplication, division, addition, subtraction, real numbers, decimal numbers.

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4 years ago

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Ivahew [28]

The answer is C)

Step-by-step explanation:
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Answer:

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Step-by-step explanation:

The exponential growth formula is given by

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