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MaRussiya [10]
3 years ago
13

WILL MARK BRAINLIST TO WHOEVER ANSWERS FIRST!!!!!!!1

Mathematics
1 answer:
valentina_108 [34]3 years ago
3 0

Answer:

D is my answer

B is my 2nd choice but im going with D hopefully im right and if I am, lmk

Step-by-step explanation:

remember it says which of the following equations can be used to determine NOT how much she will have after "w" weeks so it is not A.

C. is wrong because the 40 is supposed to come before the 20.

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In solving equations, each must have vales of x and y. X is any number and Y is the output of any number. If you substitute x for a number, you can solve the equation for y. 
5 0
3 years ago
What is compatible number to find two estimates that the quotient is between 1624÷3
Vladimir [108]
1500÷3 =500


1800÷3 =600
8 0
3 years ago
Graph y+6 = 4/5 (x+3 using the point and slope given in the equation.
egoroff_w [7]

Answer:

Slope: 4/5

Point: (-3|-6)

4 0
3 years ago
0 A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sampl
balandron [24]

Answer:

<em>The first step is to determine the average </em>

x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475

<em>The exercise says it’s a normal distribution: (n=8)</em>

s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183

<em>According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained </em>

<em />

t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\  t= -0,3860

<em>The variable t has 7 grade to liberty, we calculate the p-value as: </em>

2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108

This value is very high, therefore the hypothesis is not rejected

7 0
4 years ago
it was found that out of 45 girls,10 joined singing but not dancing and 24 joined singing.How many joined both. options: A: 21 B
katrin [286]

Answer:

answer is 24

out of 45,

24+10=singing

only 24=dancing

so 24 girls joined both

3 0
4 years ago
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