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4 years ago

Using compatible numbers, which number is the best estimate of 72.67 ÷ 7.8?

Mathematics

1 answer:

LiRa [457]4 years ago

8 0

B is the answer to your question.

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The Osborne Bakers want to make 30 pounds of a berry mix that costs $3.00 per pound to use in their pancake mix. They are using

olasank [31]

Answer:

You have to use 20 pounds of blackberries

Step-by-step explanation:

To start, we are going to make two equations, one that represents the amount of pounds and another that represents the prices

a = blueberries

m = blackberries

a + m = 30

a * 2$ + m * $3.50 = 30 * $3

let's clear in the first equation

a + m = 30

a = 30 - m

we replace in the second equation a by (30 - m)

a * $2 + m * $3.50 = 30 * $3

(30 - m) * 2 + m * 3.50 = 30 * 3

60 - 2m + 3.5m = 90

-2m + 3.5m = 90 - 60

1.5m = 30

m = 30/1.5

m = 20

we replace m with its value in the first equation

a = 30 - m

a = 30 - 20

a = 10

8 0

4 years ago

LCD of 7/15 and 1/10

forsale [732]

Answer:

Step-by-step explanation:

15 and 10 are multiples of 5

5 x 2 and 5 x 3

LCD means lowest common denominator or the most simplified denominator

7 0

4 years ago

Read 2 more answers

Draw the two lines y = 2x + 2/3, and y = 2x + 1/3. They are parallel a

Nonamiya [84]

Answer:

Two line are perpendicular when they are at right angles to each other.

The red line is perpendicular to the blue line in each of these examples:

Perpendicular Example

Step-by-step ex;planation:

6 0

3 years ago

NEED HELP ASAP !which solid figure could be formed from the net shown ?

Vladimir79 [104]

B. cube

all of the sides are equal in length

4 0

4 years ago

Read 2 more answers

Hi, can you please help me answer this direct proportion question?

Oksanka [162]

Answer:

X = 100

Step-by-step explanation:

In proportion questions, they want you to multiply one of the sides by a variable, (i usually represent it with K) and then change the proportion sign to an equal.
This is because proportional means they have a ratio between them, with one side increasing by "k" for each increase in the other side.

Multiply the left by k, so $y = \frac{k}{\sqrt{x} }$
we know that y= 5, for x = 36, so sub this in the equation
$5 = \frac{k}{\sqrt{36} }$
simplify $5 = \frac{k}{6 }$
re-arrange for k, <u>k = 5*6 = 30</u>
now we know k, we can create the real equation, $y = \frac{30}{\sqrt{x} }$
sub in 3 as y
$3 = \frac{30}{\sqrt{x} }$
<u>x = 100</u>

4 0

2 years ago