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vichka [17]
3 years ago
14

At school, 19 percent of the students wore red shirts on Valentine’s Day. There are sixteen classes in the school with twenty-tw

o students in each class. How many students wore red shirts on Valentine’s Day?
Mathematics
2 answers:
Illusion [34]3 years ago
8 0

Answer: 66.88 or 66

Step-by-step explanation:

nlexa [21]3 years ago
3 0
66% of the students wore red on Valentine’s Day
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Julia has 14 butterfly stickers. Daria has 26 butterfly stickers. How many more butterfly stickers does Daria have than Julia?
Leno4ka [110]

Answer:

  • 12
  • B: additive comparison

Step-by-step explanation:

The word "more" in this context means we want to find the difference between the number Daria has and the number Julia has. It is an "additive" comparison.

____

You need to be a little careful with this. You will often see wording such as "... <em>times more</em> than ...", in which case it is a multiplicative comparison. (I would prefer the multiplicative comparison wording to be "... times as many as ...", so that "more" is reserved for additive comparisons. Alas, not in this lifetime.)

8 0
3 years ago
What is the volume of this pyramid? 945 cm³ 1260 cm³ 1890 cm³ 2520 cm³ A pyramid with a right triangular base. The right triangu
notsponge [240]

Answer:

The volume of the pyramid is 1,260\ cm^{3}

Step-by-step explanation:

we know that

The volume of the triangular pyramid is equal to

V=\frac{1}{3}BH

where

B is the area of the triangular base

H is the height of the pyramid

step 1

Find the area of the base B

B=\frac{1}{2}bh

we have

b=14\ cm

h=18\ cm

substitute

B=\frac{1}{2}(14)(18)=126\ cm^{2}

step 2

Find the volume

we have

B=126\ cm^{2}

H=30\ cm

substitute

V=\frac{1}{3}BH

V=\frac{1}{3}(126)(30)=1,260\ cm^{3}

5 0
3 years ago
Read 2 more answers
Find the value of x
romanna [79]

they are 2 similar triangles, one is smaller than the other. they are in the ratio of 2:1,

hence 7x =56÷2

7x=28

x=4

4 0
3 years ago
Just do b d f h and j​
Andrew [12]

Answer:

b) 1.383

d) 2733

f) 41.429

h) 6317

j) 87.889

Step-by-step explanation:

4 0
2 years ago
What is 3x+4= -15? How would you get a negative number?
bulgar [2K]

Answer:

x=-\frac{19}{3}

Step-by-step explanation:

3x+4=-15

3x+4-4=-15-4

3x=-19

\frac{3x}{3}=\frac{-19}{3}

x=-\frac{19}{3}

5 0
3 years ago
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