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saveliy_v [14]
3 years ago
6

Help me with this pls!!

Mathematics
1 answer:
kykrilka [37]3 years ago
4 0

Answer:

5 3/4 hours

Step-by-step explanation:

They drove 3 1/2 hours then  2 1/4 hours. We need to find the total of these to find how long this part of the trip was

(3 + 1/2) + (2 + 1/4) = 5 + 1/2 + 1/4

For 1/2, we can multiply both the numerator and denominator by 2 to get

1/2 = 2/4

Substituting that in, we get

5 + 2/4 + 1/4

= 5 + 3/4 hours

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inysia [295]

Answer:

The answer is 6 1/3 divided by 2 which is 3 1/6

Step-by-step explanation:

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3 years ago
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Solve for z. <br> X=3y+3z
stepladder [879]

Answer: Option 2

Step-by-step explanation:

5 0
2 years ago
What is the average rate of change ?
RUDIKE [14]

Answer:

A. -8

Step-by-step explanation:

The average rate of change can be found with the formula

[f(b) - f(a)]/(b - a)   on the interval a to b

Here, a = 3, b = 5, f(a) = -10, and f(b) = -26.  Plug in the values and simplify...

[-26 - (-10)]/(5 - 3)

   [-26 + 10]/2

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4 0
3 years ago
Read 2 more answers
Factor the quadratic expression 9x^2+33x+30
kicyunya [14]
Multiply the values of a and c together;

9*30= 270 <— find prime factors of this

270= 3*3*3*5*2

Now find a way to add these factors in different ways to give 33 (b value)

We can try (3*3*2)+(3*5)=?

18+15=33

Now that you know the numbers, break down the b value.

9x^2+18x+15x+30
9x(x+2)+15(x+2) <— make sure the brackets are the same
(9x+15)(x+2) <— check if this expands to the initial answer

Hope I helped :)
6 0
3 years ago
A batch of snack mix made of dried fruit and nuts contain 744G of nuts the ratio of nuts to dried fruit by weight is 12 to 13 ho
Bezzdna [24]

In a bag of snack mix:

n = nuts       d = dried fruit

n = 744g        d = ???g

Ratio Nuts/Dried fruit = 12/13

This basically means that if the mix was divided in 25 parts, 12 parts would be nuts and 13 would be dried fruits

If 744 is 12 parts then 744/12 is 1 part

744/12 = 62

1 part = 62g

there are 13 parts of dried fruit

13 x 62 = 806

744g of nuts + 806g of dreid fruit = 1550g

Answer: A batch of snack mix weigh 1550g, or 1.55kg

hope it helps :)

6 0
3 years ago
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