PLEASE HELP!! It is easy!!!!!

Answers

Answer 1

Answer:
Multiple choice questions were worth some points.
We don't know how many yet. That's what we're trying to find.
Call it ' M ' (for 'mystery number' or 'multiple-choice')

Francine got 34 multiple choice questions correct.
She got 34M points for them.
She got 14 more points for her essay.
Her total score was 34M + 14.

Cheryl got 30 multiple choice questions correct.
She got 30M points for them.
She got 22 more points for her essay.
Her total score was 30M + 22.

THEIR SCORES WERE EQUAL.

So    34M + 14 = 30M + 22

Subtract 14 from each side 34M   = 30M + 8

Subtract 30M from each side: 4M    = 8

Divide each side by 4 :    M    =    2

Each multiple choice question is worth 2 points. Exactly. 2.00000

Check:
Francine got 34 questions right . . . 68 points
plus 14 for her essay => total 82 .

Cheryl got 30 questions right . . . 60 points
plus 22 for her essay => total 82 . yay!

Answer 2

Answer:

Answer:

82 .

Step-by-step explanation:

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A copy machine makes 45 copies in 25 seconds .Find the unit rate of copies per second

Answers

Final answer:

The unit rate of the copy machine expressed in terms of copies per second is found by calculating the ratio 45 copies/25 seconds, which equals 1.8 copies/second.

Explanation:

To find the unit rate of copies per second, we need to divide the total number of copies by the total time taken. In other words, we have to find out how many copies are made in one second. Here, the copy machine makes 45 copies in 25 seconds.

To calculate the unit rate, we use the formula Unit Rate = Total Quantity / Total Time. Substituting the given numbers into the formula, we get:

Unit Rate = 45 copies / 25 seconds = 1.8 copies/second.

This means the copier's unit rate is 1.8 copies per second.

Learn more about Unit Rate here:

brainly.com/question/11258929

#SPJ6

Answer:

1.8

Step-by-step explanation:

45 divided by 25

What is the midpiont of 1 and 1+4a

Answers

Answer:

1+2a

Step-by-step explanation:

To find the midpoint, add the two points together and divide by 2

(1+ 1+4a) /2 = (2+4a)/2 = 2/2 + 4a/2 =1 +2a

Is 38.5 mm bigger than 10 cm?

Answers

Well, if you use KHD---DCM, or King Henry does --- dives catching mice or, Kilometers,Hectometers,Dekameters,base,Decimeters,Centimeters, Millimeters. So you see that Millimetres are after Centimeters so, 10 cm is bigger than 35.5mm

Which fractions are equivalent to -3/8? A. -6/16, B. 12/32, C. -3/8, D. 9/-24

Answers

The answer is 12/32 because its both an even number and my 2nd grade teacher said even numbers are equivalent,

the answer is A.-6/16 and C.-3/8 because both the numerator and denominator need to be multiplied the same number.

What is the approximate circumference of a semicircle with a radius of 30 centimeters

Answers

Approximate circumference of a semicircle with a radius of 30 centimeters is 94.2 centimeter

Solution:

Given semicircle with a radius of 30 centimeters

To find: approximate circumference of a semicircle

To find circumference of semicircle we can divide the circumference of circle by 2

circumference of semicircle = circumference of circle $/$ 2

$\text{ circumference of semicircle} = (2 \pi r)/(2) = \pi r$

Substituting the given radius = 30 cm,

$\text{ circumference of semicircle} = 3.14 * 30 = 94.2$

Thus approximate circumference of a semicircle with a radius of 30 centimeters is 94.2 centimeter

Answer:

94.2

Step-by-step explanation:

Find the values of x and y.

Answers

Refer to the notations above:

<BCD+40°=180° (angles on a strainght line)
<BCD=180°-40°
<BCD=140°

As BC=CD(given),△BCD is an isosceles triangle,thus <CBD=<CDB=x(properties of isosceles triangle).

We can then proceed to find x(<CDB and <CBD):

140°+ x + x=180°(angles sum of triangles)
2x=180°-140°
x=40°/2
x=20°

Then, we can again use the angles sum of triangle to solve y:

y+90°+20°=180°
y=180°-90°-20°
y=70°

Therefore, x=20° and y=70°.

Hope it helps!