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Law Incorporation [45]
3 years ago
15

What is the best estimate of of the sum of the fractions?

Mathematics
2 answers:
Ronch [10]3 years ago
4 0
Let's add the fractions first and then we can estimate the sum.


= 31/4 + 17/3 + 8/18
change to common denominators

= 279/36 + 204/36 + 16/36
add numerators only

= 499/36 or 13 31/36 or 13.86


ANSWER: (B) 13 is the best estimate of the answer. Normally we round up to 14 with a number like 13.86, but since that is not a choice, we can estimate 13 as the answer.
Rom4ik [11]3 years ago
4 0

Answer:

b

Step-by-step explanation:

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If 1 box cost rs 45 find the cost of 9 boxes​
jarptica [38.1K]

Answer:

9 boxes cost Rs 405

Step-by-step explanation:

1 box costs 45.

so, how much are 2 boxes ? what do you think ?

right, twice as much : 2 × 45 = 90

how much are 3 boxes ?

now it is three times the cost of 1 box : 3 × 45 = 135

do you see the pattern ?

it is really simple.

that is also the origin why we describe a multiplication by "times". we take a single item so and so many times.

when you see something like this, you know, they are talking about multiplication.

so, here we want to know how much 9 boxes cost.

therefore,

9 × 45 = 405

is the answer.

6 0
2 years ago
1/4( x - 1 ) + 3x = 2 <br>solve the equation
Dmitriy789 [7]
The answer is x = 9/13
Hope in helped
3 0
2 years ago
Gracie earns $7 for each car she washes. she always saves $25 of her weekly earnings. this week, she wants to have at least $65
nata0808 [166]
65 divided by 7 is approximently 9, and 25 divided by 7 is approximently 3, so 9 plus 3 is 12, so Gracie must wash 12 cars to earn enough money to save 25 and spend 65!
7 0
3 years ago
What is the remainder if f(x) = x4 – 5x2 - 6x - 10 is divided by x - 3?
bezimeni [28]

Answer:-46

Step-by-step explanation: just took test

5 0
2 years ago
Im solving variables -4y + 7 = -10y+37
Ulleksa [173]

Answer:

5

Step-by-step explanation:

move the terms

collect like terms

calculate

divide both side

8 0
2 years ago
Read 2 more answers
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