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gladu [14]
3 years ago
9

Can anybody help please ??

Mathematics
2 answers:
Finger [1]3 years ago
8 0

Answer:

d because it makes the most sense

Step-by-step explanation:

Anastasy [175]3 years ago
5 0

Answer:

D- 50

Step-by-step explanation:

.6 (60%) times 50 = 30

You might be interested in
- 6/39 simplified. :)​
stepan [7]

2/13_

Step-by-step explanation:

6/39_=

_6÷39/3

=2/39_

=11÷2/39_

=2/13_

4 0
2 years ago
A system of equations is graphed on a coordinate plane.
zavuch27 [327]

Answer:

Option C is correct.

(1, 4)

Step-by-step explanation:

A system of equation is given :

2x + 3y =12                 .....[1]

4x + 2y =10                 .....[2]

Multiply equation [1] by 2 both sides we get;

2(2x+3y) = 2(12)

Using distributive property i,e a \cdot(b+c) = a\cdot b+ a\cdot c

4x + 6y = 24                           .....[3]

Subtract equation [2] from [3] to eliminate x we get;

4x + 6y - 4x - 2y= 24 - 10

Combine like terms;

4y = 14

Divide both sides by 4 we get;

y = 3.5

Substitute the value of y in equation [1] we have;

2x + 3(3.5) =12

2x + 10.5 = 12

or

2x = 12 -10.5

2x = 1.5

Divide both sides by 2 we get;

x = 0.75

Solution = (0.75 , 3.5)

Best estimate solution =  (1, 4)

Therefore, the best estimate solution of the given system of equation is, (1, 4)

8 0
4 years ago
What is equivalent to 1 1/2
Marat540 [252]

Answer:

1 1/2 is equal to 1.5.

Step-by-step explanation:

1/2 converted is .5.

A half of 1 is .5 or 1/2.

3 0
3 years ago
You know that there is a strong correlation between the consumption of ice cream and body weight. The Pearson's r = 0.78. You al
Naddika [18.5K]

Answer:

y = 7.8x + 26

Step-by-step explanation:

Given the following :

Pearson's r = 0.78

Average consumption of ice cream = 5 grams per week (m) with Standard deviation (sd) = 1.5 grams

Average weight = 65 kg with standard deviation of 15kg

Formular for the regression line :

General regression formula :

y = mx + c

y = predicted variable ; m = slope or gradient ; x = predictor variable ; c = intercept

Gradient (m) = change in y / change in x

m = (sd y / sd x) * r

m = (sd weight / sd ice cream) × r

m = (15 / 1.5) × r

m = 10 × 0.78 = 7.8

Intercept:

mean of weight(y) - [Slope×mean of icecream(x)]

65 - [7.8 × 5]

65 - 39 = 26

Hence,

y = 7.8x + 26

5 0
3 years ago
What is the simplified form of the following expression? 4/7^3
timofeeve [1]
If your question is :
\frac{4}{7^3}

Then the answer is:
\frac{4}{7*7*7} =  \frac{4}{343}

If your question is:
(\frac{4}{7}) ^{3}

Then the answer is:
\frac{4*4*4}{7*7*7} =  \frac{64}{343}
6 0
3 years ago
Read 2 more answers
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