3 years ago

At a conference, there are 121 math teachers and 11 science teachers. Write the

1 answer:

8 0

Answer:11:1

Step-by-step explanation: the are 121 math teachers and there are 11 science teachers so that is 121:11 divide both numbers by 11 which is their highest common multiple and the result is 11:1

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Omar will run at most 33 miles this week. So far, he has run 18 miles. What are the possible numbers of additional miles he will

motikmotik

Step-by-step explanation:

33-18 = 15

x<= 15 because he won't run more than 33

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3 years ago

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A school assembly has 60 students in attendance and 75% of them are first graders . how many first-graders were at the assembly

elixir [45]

The answer is 45

Step-by-step explanation:

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3 years ago

One number is 4 more than another, and their sum is 60. What is the smaller number? If x = the larger number and y = the smaller

erik [133]

Answer:

a. $x+y=60$ and $-x+y=4$

Step-by-step explanation:

Let x be the larger number and y be the smaller number.

We have been given that one number is 4 more than another. We can represent this information in an equation as:

$y=x+4...(1)$

We can manipulate this equation as:

$y-x=x-x+4$

$-x+y=4$

We are also told that the sum of both numbers is 60. We can represent this information in an equation as:

$x+y=60...(2)$

Upon looking at our given choices, we can see that option 'a' is the correct choice.

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3 years ago

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Consider a circle. The length of the arc for the central angle of 45 degrees is 16cm, then the total circumference (perimeter) o

Amanda [17]

Answer:

Step-by-step explanation:

the arc length is calculated as

arc = circumference (C) × fraction of circle , then

16 = C × $\frac{45}{360}$ = C × $\frac{1}{8}$ ( multiply both sides by 8 )

128 = C

circumference of circle is 128 cm

5 0

2 years ago

Please help and explain

pogonyaev

Answer:

$x = 12$

Step-by-step explanation:

$3x - 1 + x + 7 = 54$

$4x + 6 = 54$

$4x + 6 - 6 = 54 - 6$

$4x = 48$

$\frac{4x}{4} = \frac{48}{4}$

$x = 12$

$3(12) - 1 + (12) + 7 = 54$

$36 - 1 + 12 + 7 = 54$

$35 + 12 + 7 = 54$

$35 + 19 = 54$

$54 = 54$

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3 years ago

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