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3 years ago

2 (6z + 2) = 28 Linear equations w/ distributions. Please

Mathematics

2 answers:

crimeas [40]3 years ago

6 0

Z would equal 2 hope this helps!!

lord [1]3 years ago

5 0

Z = 2
1. distribute the 2 first by multiplying it by 6z and 2

2. Cancel out the 4 by subtracting 4 from both sides

3. Cancel out the 12 by dividing 12 from both sides

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Hi can someone help me with this?

SpyIntel [72]

Answer: 72

Step-by-step explanation:

A = bh

A= (12)(6)

4 0

3 years ago

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A master painter can paint 110 square yards of surface area with a roller in 1 hour, while his apprentice can paint 85 square fe

7nadin3 [17]

The apprentice needs 6.25 hours to complete the job using the brush

<h3><u>Solution:</u></h3>

Given, A master painter can paint 110 square yards of surface area with a roller in 1 hour

$\text { Then, his rate of painting }=110 \text { yard }^{2}$

We know that 1 yard = 3 feet

$=110 \times(1 \text { yard })^{2}=110 \times(3 \text { feet })^{2}=110 \times 9 \text { feet }^{2}=990 \text { square feet. }$

While his apprentice can paint 85 square feet of surface area per hour with a brush

Together they are painting a building with a surface area of 5100 square feet.

After painting for $4\frac{1}{4}$ hours , the master painter lets the apprentice Finish the job.

Now, they worked for $4\frac{1}{4}$ hours

Then, area painted = area painted by master + area painted by apprentice

$\text { Area painted }=990 \text { square feet per hour } \times 4 \frac{1}{4} \text { hours }+85 \text { square feet per hour } \times 4 \frac{1}{4} \text { hours }$

$\text { Area painted }=990 \times \frac{4 \times 4+1}{4}+85 \times \frac{4 \times 4+1}{4}$

$\begin{array}{l}{\text { Area painted }=990 \times \frac{17}{4}+85 \times \frac{17}{4}=(990+85) \times \frac{17}{4}} \\\\ {\text { Area painted }=1075 \times \frac{17}{4}=4568.75 \text { square feet. }}\end{array}$

Now, the remaining area to be painted = total area – painted area

Area to be painted = 5100 – 4568.75 = 531.25

So, apprentice has to paint 531.25 square feet alone.

$\text { Then, time required }=\frac{\text { area to be painted }}{\text { his rate of painting }}$

$=\frac{531.25}{85}=6.25$

Hence, the apprentice needs 6.25 hours to complete the job

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4 years ago

What is the area of this shape????

DIA [1.3K]

20cm^2 assuming that each box is one cm

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3 years ago

A bouncy ball is thrown into the air. The height of the bouncy ball above ground can be represented by the function h(t)= −16t^2

aniked [119]

I don’t understand the question

3 0

3 years ago

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Can anyone help me with this?

7nadin3 [17]

Hey there! Welcome to Brainly! I'm happy to help you!

ANSWER A

If two events is mutually exclusive, it means that they cannot occur at the same time. Coin tossing is an example of something being mutually exclusive, landing on heads and tails cannot happen at the same time; it's either one or the other! In our case, this is not the case. The pizza having mushrooms on it does not affect the type of crust. The crust type and mushrooms can happen at the same time; you can have both! Therefore, Thick Crust Pizza and Pizza with mushrooms are not mutually exclusive.

ANSWER B

ANSWER 1: We know that there are nine pizzas in the oven. Looking at the chart, we see that three total pizzas have thick crust. One of them has no mushrooms and two of them do have mushrooms. This probability is 3/9, or 1/3.

ANSWER 2: We want to find a pizza that has both mushrooms and a thick crust. As we saw when solving for Answer 1, we have that 2 pizzas have both thick crust and mushrooms. This probability is 2/9.

ANSWER C

A dependent event is one that will depend on the result before it. Thick crust pizza and mushrooms do not affect each other at all; they do not depend on each other. They both do their own thing. We need to justify with things we found in Answer B. Well, when we added the event of mushrooms our probability decreased. If one of the events depended on the other, the probability would have definitely increased. Therefore, these events are both independent.

I hope that this helps you! Have a wonderful day!

3 0

4 years ago