Help with number 9 please

Answer:

4√10

Step-by-step explanation:

Hello!

Let's first simplify the radical.

We can do this by expanding the radical:

We need to pull out a perfect square factor to expand a radical and simplify it. In 45, we have 9 and 5 multiplied, and 9 is a perfect square.

Let's work with √45:

√45 can be written as √9 * √5 (using the rule √ab = √a * √b)
√9 simplifies to 3, so it is 3√5

Now we can simplify the operation in the parenthesis by combining like terms:

3√5 + √5
√5 + √5 + √5 + √5
4√5

Now using the same rule as above, we can multiply the values:

√2(4√5)
4√10

Your solution is 4√10

3 0

2 years ago

Hey I need help with this question thanks for people who can help me and have a good day could you include explanation

Aleks04 [339]

Answer:

25

Step-by-step explanation:

<u>Formula</u>

$B = 25(\frac{M}{10} +\frac{3}{4} )$

Where M meters of granola makes B granola bars.

<u>Given:</u>

M = 2.5 meters

Now substitute that value in the formula and calculate.

$B=25(\frac{2.5}{10} +\frac{3}{4} )= 25(1) = 25$

Therefore, 2.5 meters of granola makes 25 granola bars.

B = 25

5 0

2 years ago

Please help me with these two questions

melisa1 [442]

Hi! It will be a pleasure to help you finding the solution to this problem, so let's solve each part:

<h2>PART 1.</h2><h3>Finding the correct expression.</h3><h3>Correct answer:</h3>

$\boxed{A. \ 1.50h+4}$

From the problem, we know the following data of the problem:

Laval parked at the beach.
Laval paid a fixed price of $4 for a pass.
Laval paid $1.50 for each hour.

Our goal is to find the the expression for the total cost for parking at the beach for h hours. So:

Step 1: Since we have a fixed price, this value will appear in our expression:

$4$

Step 2: Since Laval paid $1.50 for each hour, this can be represented as the following expression:

$1.50h$

Finally, we can write total cost (C) as the sum of these two expressions:

$C=1.50h+4$

Finally, our correct option is A:

$\boxed{1.50h+4}$

<h2>PART 2.</h2><h3>Finding h.</h3><h3>Correct answer:</h3>

5 hours

Here we have to find how many hours Laval spent at the beach knowing that he paid a total amount of $11.50. From the previous part, we know that our expression is:

$C=1.50h+4 \\ \\ For \ C=11.50 \\ \\ 11.50=1.50h+4 \\ \\ Subtracting \ 4 \ from \ both \ sides: \\ \\ 11.50-4=1.50h+4-4 \\ \\ 7.5=1.50h \\ \\ Dividing \ both \ sides \ by \ 1.50 \\ \\ h=\frac{7.5}{1.50}=5$

Finally, he spent 5 hours at the beach

6 0

3 years ago

Isaiah and Cooper work at a dry cleaners ironing shirts. Isaiah can iron 25 shirts per hour, and Cooper can iron 30 shirts per h

Volgvan

Answer:

See Explanation

Step-by-step explanation:

$25x + 30y = 340\\y = 2x\\$

x=number of hours Isaiah worked.

y=number of hours Cooper worked

4 0

3 years ago

Linda has 15 students in her class and she wants each student to have ice cream sandwiches if there are 10 sandwiches in a box h

Andreas93 [3]

Well since there are more than 10 people she should first get one box. She will then have 5 more people to feed so she will just have to buy another even though there will be leftovers.

3 0

3 years ago

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