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2 years ago

I need help I’m confused please help

Mathematics

2 answers:

scoray [572]2 years ago

7 0

Answer:

Step-by-step explanation:

Lana71 [14]2 years ago

5 0

Answer:

Step-by-step explanation:

Look at the ratios in each table. it should be 3:4 for each slot of sugar vs flour

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Gina had a scrambled egg and a cup of low fat milk for breakfast she had an oak bar nothing for a morning snack about how many m

mojhsa [17]

May be she might have had 250 grains of portion.

8 0

3 years ago

Find the solution of the system of equations.<br> – 2 – 8y = -30<br> 2x + 8y = 36

nydimaria [60]

Answer:

x= 1.5

y= 4.125

Step-by-step explanation:

Step one:

given the two equations

$-2x - 8y = -30-------1\\\\2x + 8y = 36--------2$

Step two:

let us subtract the equations

$-2x - 8y = -30-------1\\\\ -(2x + 8y = 36)--------2\\\\0x-16y=-66$

$-16y=-66\\\\16y=66$

divide both sides by 16

$y=66/16\\\\y=4.125$

put y= 4.125 in equation 2

$2x + 8(4.125)= 36\\\\2x+33=36\\\\2x=36-33\\\\2x=3\\\\x= 3/2\\\\x= 1.5$

3 0

2 years ago

Suppose that 5 out of 13 people are to be chosen to go on a mission trip. In how many ways can these 5 be chosen if the order in

algol [13]

5 People can be chosen in 1287 ways if the order in which they are chosen is not important.

Step-by-step explanation:

Given:

Total number of students= 13

Number of Students to be selected= 5

To Find :

The number of ways in which the 5 people can be selected=?

Solution:

Let us use the permutation and combination to solve this problem

$nCr=\frac{(n)!}{(n-r)!(r)!}$

So here , n =13 and r=5 ,

So after putting the value of n and r , the equation will be

$13C_5=\frac{(13)!}{(13-5)!(5)!}$

$13C_5=\frac{(13 \times12 \times11 \times10 \times9 \times8\times7 \times6 \times5 \times4 \times3 \times2 \times1)}{(8 \times7 \times6 \times5 \times4 \times3 \times2 \times1)(5 \times4 \times3 \times2 \times1)}$

$13C_5=\frac{(13 \times12 \times11 \times10 \times9 )}{((5 \times4 \times3 \times2 \times1)}$

$13C_5=\frac{154440}{120}$

$13C_5= 1287$

8 0

3 years ago

Teague is participating in a 50K run to raise money for a charity. He has already raised $102 and will receive $1.40 for each ki

Volgvan

He has to run 45 kilometers

3 0

2 years ago

Plz help me people guys xx :)

kaheart [24]

Answer:

48.9

Step-by-step explanation:

Subtract 2 from 99.8 = 97.8

Divide 97.8 by 2 - 48.9

6 0

2 years ago