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3 years ago

PLS HELP ME I SUCK AT MATH

Mathematics

1 answer:

Rainbow [258]3 years ago

5 0

Divide the sides of the larger triangle by the corresponding side of the smaller one:

18/7.2 = 2.5

Figure A is 2.5 times the size of figure B

The scale factor is 2.5

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Use the formula A=bh , where A is the area, b is the base length, and h is the height of the parallelogram, to solve this proble

lidiya [134]

The height of this specific sign is 15 inches.

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3 years ago

Read 2 more answers

There are 10 cranberry and 15 strawberry juices. You randomly pick two juices. What's the probability you'll get two strawberry

lorasvet [3.4K]

Answer:

7/20

Explanation:

The theoretical probability, P (A), of an event, A, is:

P(A) = number of outcomes of event A / total number of possible outcomes

For 10 cranberry and 15 strawberry juices, the number of outcomes for two strawberry juices are:

Combination of 15 strawberry juices chosen in two:

$C^{15}_{2}=\frac{15!}{(15-2)!(2!)}=\frac{15!}{13!2!}=\frac{15\times 14}{2}=105$

The total number of possible outcomes is:

Combination of 25 juices chosen in two:

$C^{25}_{2}=\frac{25!}{(25-2)!(2!)}=\frac{25!}{23!2!}=\frac{25\times 24}{2}=300$

Thus, the probability of randomly picking two strawberry juices is:

P (two strawberry juices) = 105/300 = 7/20

Note that you can obtain it as the product of the probabilities that the first juice is a strawberry juice and the second juice is also strawberry juice:

$15/25\times 14/24=(15\times 25)/(14\times 24)=210/600=7/20$

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3 years ago

A class is going on a field trip to see a movie. Each ticket is $8.00. The number of students, n, who will receive a $8.00 ticke

garik1379 [7]

The equation would be 8n=c

Hope this helps!

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3 years ago

It takes me into 30 minutes to walk from home to school when walking at 5 km per hour What is her average cycling speed If it ta

GREYUIT [131]

Answer:

10 km/h

Step-by-step explanation:

I'm not really sure about this but no ones answering your question and I wanna help.

So basically to calculate the average speed you need to divide the distance travelled by time taken

But you do not have the distance traveled. But it is mentioned that it takes u 30 minutes to walk from home to school when walking at 5 km/h so to find the distance all you have to do is... 30 x 5 = 150 km

Now that we have the time and distance all we have to do is find the average speed.

Average Speed = distance ÷ time

So 150 ÷ 15 = 10 km/h

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3 years ago

Evaluate the expression for the given value of the variable(s). 5a + 5b; a = -6, b = -5

Vika [28.1K]

Your answer is A. You literally plug in the numbers for a and b to solve for the equation.

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3 years ago