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julia-pushkina [17]

3 years ago

15

jennifer scored a 69%, 82%, 74%, 91% and a 79% on her math tests this quarter. What is jennifer's average test score for this qu

arter?

2 answers:

Semmy [17]3 years ago

8 0

79
because you add all of the numbers than divide by how meany # there are

Molodets [167]3 years ago

3 0

69%+82%+74%+91%+79%=395% /5 = 79%

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a model ship is built to a scale of 1 centimeter: 5 meters. the length of the model is 30 centimeters. what is the actual length

kifflom [539]

The answer is 150 centimeters

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3 years ago

Drag the tiles to the boxes to form correct pairs. Match each mixed number to its equivalent decimal number.

zysi [14]

Answer:

20 3/4 is to 20.75

20 1/5 is to 20.2

20 7/8 is to 20.875

and 20 4/5 is to 20.8

5 0

3 years ago

Mrs. Lin is sewing costumes for her grandchildren. She is making three lion costumes, one zebra costume, and two bear costumes.

stepladder [879]

Answer:

$12\frac{1}{8}\ yd$

Step-by-step explanation:

we know that

The total fabric that Mrs. Lin needs is equal to

$3(1\frac{2}{3})+2\frac{5}{8}+2(2\frac{1}{4})$

Convert mixed number to an improper fraction

$1\frac{2}{3}=1+\frac{2}{3}=\frac{5}{3}$

$2\frac{5}{8}=2+\frac{5}{8}=\frac{21}{8}$

$2\frac{1}{4}=2+\frac{1}{4}=\frac{9}{4}$

substitute

$3(\frac{5}{3})+\frac{21}{8}+2(\frac{9}{4})$

$5+\frac{21}{8}+\frac{9}{2}$

$\frac{40+21+36}{8}=\frac{97}{8}\ yd$

Convert to mixed number

$\frac{97}{8}\ yd= \frac{96}{8}+\frac{1}{8}=12\frac{1}{8}\ yd$

4 0

3 years ago

9/20 divided by 4/15

polet [3.4K]

36/3000 ? maybe 1/5 ....................................

8 0

3 years ago

Read 2 more answers

Is it possible for three vectors of different magnitudes to add to zero?.

amid [387]

Answer:

No, it is not possible to obtain zero by adding two vectors of unequal magnitudes.

Explanation:

The Sum of two vectors can only be zero if they are equal in magnitude and opposite in direction. So no two vectors of unequal magnitude cannot be added to give a null vector. Three vectors of equal magnitude and making an angle 120 degrees with each other gives a zero resultant.

6 0

2 years ago