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3 years ago

Whats (18-6)x3+5 I need to know

Mathematics

2 answers:

Amanda [17]3 years ago

8 0

Use PEMDAS So (18-6)=12
Parenthesis Multiply 12*3=36
Exponent Add 36+5=41
Multiply Your answer is 41
Divide
Add
Subtract

Yuliya22 [10]3 years ago

6 0

Use PEMDAS.
solve the parenthesis first
18-6 =12
so
12 x 3+5
you then multiply.
12x3 is 36
36+5 would give you 41

You might be interested in

Witch set of orderd pairs contains only points that are on the graph of the function y=12-3x

anygoal [31]

You can try then by plotting the points in.
The answer is C

Make sure by plotting in the points, lets take (-5,27)
y = 12 -3(-5)
y = 12 + 15
y = 27
27 = 27
This is correct

Lets try (-1,15)
y = 12 -3(-1)
y = 12 + 3
y = 15
15 = 15
This is correct

Lets try (8,-12)
y = 12 -3(8)
y = 12 - 24
y = -12
-12 = -12
This is correct too.

The correct ordered pairs are C(-5,27),(-1,15),(8,-12)

5 0

4 years ago

Hi can you help with some ratio and proportion questions

pochemuha

Answer:

1a. 12 : 40

1b. 15 : 21

1c. 24 : 44

1d. 2 : 25

2. 40 boys and 100 girls

3. 96 girls

4. £71.43

5a. 9 : 4

5b. 3 : 1

5c. 3 : 5

6. 210 : 90

7. Sorry, I couldn't figure out how to solve this question :(

Step-by-step explanation:

Since I'll be using a similar method to solve these questions, I won't go into a detailed explanation for how I solved every single question. If you do need extra help, please ask in the comments below my answer.

1. Let's use part (a) as an example. The ratio is 3:10. To new ratio is ?:40. So, 10 becomes 40. What number multiplied by 10 equals 40? The answer is 4. If 10 is multiplied by 4, then 3 must be multiplied by 4 as well. 3*4 = 12, so the ratio is 12:40.

In part b the ratio is multiplied by 3, part c is 4, and part d is 1/2.

2. To solve this, add the values on both sides of the ratio together: 2 + 5 = 7. Now, divide the total number of pupils, 140, by 7: 140/7 = 20. Finally, multiply 20 by both sides of the ratio: 2 * 20:5 * 20 = 40:100. There are 40 boys and 100 girls.

3. To solve this I used the same method as the one I used in question 1.

4. The ratio is 5:140, where 140 becomes 2000. To solve, use the method used in question 1.

5. Simplifying ratios is the same as simplifying fractions. Find the greatest common factor of the values on both sides of the ratio and divide both sides by that factor. For example, in part a the factor for 45:20 is 5. 45/5 = 9 and 20/5 = 4. The ratio becomes 9:4.

For part b the factor is 9 and for part c the factor is 50.

6. Same method as was used in question 2.

Hope this helps :)

5 0

3 years ago

Given: FPST is a trapezoid, FP=ST, m∠F=45°, PF=8, PS=10 Find: The midsegment MN.

kodGreya [7K]

Answer:

$4\sqrt{2}+10$

Step-by-step explanation:

In trapezoid FPST, FP=ST, then this trapezoid is isosceles, so

$m\angle F=m\angle T=45^{\circ}.$

Draw the height PH. Triangle FPH is right triangle with two angles of measure 45°. This means that FH=HP. By the Pythagorean theorem,

$FH^2+PH^2=PF^2,\\ \\2FH^2=8^2,\\ \\FH^2=32,\\ \\FH=4\sqrt{2}.$

Since trapezoid FPST is isosceles, the base FT hasthe length

$FT=2FH+PS=8\sqrt{2}+10.$

Then the length of the midline is

$MN=\dfrac{FT+PS}{2}=\dfrac{8\sqrt{2}+10+10}{2}=4\sqrt{2}+10.$

8 0

3 years ago

The graph shows the cost for each video game rental.

DanielleElmas [232]

Hey there!

So, from looking at this question, the bottom or the ( $x$ -axis) is $how \ many \ games \ were \ rented$ . So, this would mean that, the ( $y$ -axis) would be (how much) each game would cost.

So, based from the option's listed above, the correct answer to this question would actually be (The cost of every 1 video game rented). This would be the main and the key point of this graph, how much each game would be.

You correct answer would be . . . . . .

 $\boxed{\boxed{The \ cost \ of \ every \ 1 \ video \ game \ rented}}$

Hope this helps.
~Jurgen

4 0

3 years ago

Read 2 more answers

Subtract using the number line. - 1/3-(-1/2)

ankoles [38]

Answer:

answer is 1/1

Step-by-step explanation:

5 0

3 years ago