MATHEMATICS MIDDLE SCHOOL

The ratio of dolphins to whales sighted on a boat tour was 8 to 2. If there were 22 whales sighted, how many dolphins were sighted? Complete the ratio table to find the number of dolphins.

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Dolphins to whales=8:2

Total ratio is 8+2=10

If 2/10 represent 22

8/10 represent x

Cross multiplying

$x=\frac {22* 8/10}{2/10}=88$

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How many cubes with the side lengths of 1/2 cm does it take to fill the prisim?
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Please help i don't understand. will mark brainliest
Julie counted 25 players on a visiting soccer team. The actual number of players on the visiting soccer team was 27.What is the percent error in Julie’s measurement? If necessary, round to the nearest percent.

5x^2 - x + 9=?

x=3

needs to be simplified

Answers

51

I used a calculator

5(3)²-3+9=?
15²-12=?
225-12=213

What is the solution to the equation? 4y – 12 = –4 A. y = 11 B. y = 2 C. y = –4 D. y = –13

Answers

Hi There!

What is the solution to the equation? 4y – 12 = –4 A. y = 11 B. y = 2 C. y = –4 D. y = –13

Answer:y=2

First simplify
4y+-12=-4
Reorder the terms:
-12+4y=-4
Move all terms containing "y" to the left, all other terms to the right.

Add 12 to each side of the equation:
-12 + 12 + 4y = -4 + 12

Combine like terms:
-12 + 12 = 0
0 + 4y = -4 + 12
4y = -4 + 12
Combine like terms:
-4 + 12 = 8
4y = 8
Divide each side by '4'.
y = 2

So your answer is B Y=2
hope this helped

40 percent of the 35 male guests wear glasses. Write the number of male guests who wear glasses as a fraction of the 56 guests. Give your answer in its simplest form.

Answers

First off, to find the number of male guests who wear glasses, you multiply the number of guest (35) by 40% (.4).
$35(.4)=14$

Now just put the number of male guests wearing glasses (14) in fraction form over the total number of guests (56) and simplify.
$(14)/(56) = (7)/(28) = (1)/(4)$

$(1)/(4)$ of the guests are males who wear glasses.

Final answer:

Out of 35 male guests, 40% wear glasses. So, the number of male guests who wear glasses is 14. As a fraction of the total 56 guests, this can be represented as 1/4.

Explanation:

To find the number of male guests who wear glasses as a fraction of the total guests, we need to first calculate the number of male guests who wear glasses.

Out of the 35 male guests, 40% wear glasses.

40% of 35 is calculated as 0.4 * 35 = 14.

So, there are 14 male guests who wear glasses.

Now, to express this as a fraction of the total 56 guests, we write it as 14/56. This fraction can be simplified to 1/4 by dividing the numerator and denominator by 14.

Learn more about Calculating fractions here:

brainly.com/question/29633725

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Explain the difference between the slant height of a pyramid and the height of the pyramid.

Answers

See the diagram below.
$h$ is the height, and $s$ is the slant height.

The height is the distance from the base of the pyramid to the vertex (the top of the pyramid). It runs perpendicular to the base.

The slant height is the distance from the base of the triangles which make up its sides to the vertex. It runs perpendicular to this base as well.

What is 10x-3-2x=4?
Please...

Answers

switch the -3 on the other side of = and reduce and simply.

so it would be 8x=7
x=7/8

10x-3-2x=4
(Collect like terms)
8x-3=4
(Get x by itself, subtracf 3 from each side)
8x=1
(Divide 1 by 8)
X = 0.125

Creative catering is to cook for 16 guest this weekend. If they have 4.008 kg of beef too cook, how many grams of beef will each guest portion be exactly

Answers

Answer: 250.5g of meat per guest

Step-by-step explanation:

Convert kg to gram to be in the same unit, 1kg = 1000g; therefore multiply 4.008kg by 1000= 4008g

With 4008g of meat available, Divide the available gram of meat by the number of guests

=4008g÷ 16

=250.5g is available per guest

I hope this helps.

4,008 grams of beef. 16 people. 4,008/16
= 250.5g
=251g (nearest gram)

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