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stiv31 [10]
3 years ago
13

Riley made 5 trays of cupcakes for the bake sale. Each tray had 6 vanilla cupcakes and 8 chocolate cupcakes. How many total cupc

akes did Riley make for the bake sale
Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0

Answer:

70

Step-by-step explanation:

6x5=30

8x5=40

40+30=70

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In △XYZ , XZ=8 , YZ=5 , and XY=7 . What is the area of the triangle? Enter your answer, in simplified radical form, in the box.
andre [41]

Answer:

The area of the triangle is 10\sqrt{3}

Step-by-step explanation:

Let us use Heron's Formula for the area of a triangle

Area=\sqrt{p(p-a)(p-b)(p-c)} , where

  • a, b, and c are the length of the three sides of the triangle
  • p=\frac{a+b+c}{2}

In Δ XYZ

∵ XZ = 8, YZ = 5, XY = 7

- At first find p

∵ p=\frac{XY+YZ+XZ}{2}

∴ p=\frac{7+5+8}{2}=\frac{20}{2}

∴ p = 10

∵ Area=\sqrt{p(p-XY)(p-YZ)(p-XZ)}

- Substitute the values of p, XY, YZ, and XZ in the rule above

∴ Area=\sqrt{10(10-7)(10-5)(10-8)}

∴ Area=\sqrt{10(3)(5)(2)}

∴ Area=\sqrt{300}

- Simplify the root

∴ Area=10\sqrt{3}

The area of the triangle is 10\sqrt{3}

7 0
3 years ago
Seven times a number is between – 28 and 28.​
mart [117]

Answer:

four and negative four

Step-by-step explanation:

7*4 =28 7 *-4 = -28

3 0
2 years ago
Does anyone know the highest common factor (HCM) of 98 and 42
OLga [1]
<span>The factors of 98 are 98, 49, 14, 7, 2, 1.
The factors of 42 are 42, 21, 14, 7, 6, 3, 2, 1.<span>
The common factors of 98 and 42 are 14, 7, 2, 1, 
</span><span>In the intersection numbers of 98 & factors of 42 the largest number is 14.
</span><span>So, the greatest common factor of 98 and 42 is 14.</span></span>
6 0
3 years ago
Read 2 more answers
An urn contains n balls, one of which one is special. If k of these balls are withdrawn one at a time, with each selection being
Aleksandr [31]

Using it's concept, it is found that the probability that the special ball is chosen is given by:

p = \frac{1}{C_{n,k}}

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

The total number of outcomes is given by the combination of k balls from the set of n balls, given by:

C_{n,k} = \frac{n!}{k!(n - k)!}

One ball is special, hence the probability the special ball is chosen is given by:

p = \frac{1}{C_{n,k}}

More can be learned about probabilities at brainly.com/question/14398287

4 0
3 years ago
200 books; 75% decrease
Inga [223]
150 books because 200 times .25 is 150
4 0
4 years ago
Read 2 more answers
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