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anygoal [31]
2 years ago
12

Molly is choosing between to silent to carry in his backpack the 309 page paperbag weights 1/2 pound the 341 page hardcover weig

hts one one fourth pounds more how much does the hardcover book weights
Mathematics
2 answers:
Tamiku [17]2 years ago
5 0
The answer is 1 3/4 pounds. If you convert 1/2 into fourths it would be 2/4, If you add 1/4+2/4=3/4. After that, you add the whole.
Vinvika [58]2 years ago
3 0
The answer is 1.75lbs. Hope this helps!!!
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weeeeeb [17]

Answer:

m ∠RMK = 51°

Step-by-step explanation:

m ∠JMK = m ∠RMK + m ∠JMR

10x + 19 = 7x - 26 + 6x + 12

10x +19 = 13x -14

19 = 3x -14

 33 = 3x

 11 = x

m ∠RMK = 7(11) - 26 = 51°

m ∠JMR = 6 (11) + 12 = 78

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2 years ago
What is the value of x?
Anna007 [38]

Answer:

4x= 40

Step-by-step explanation:

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What is the base area.
Mariulka [41]

Answer:

Area of the base is 10.5 cm².

Step-by-step explanation:

Formula for the volume of the given oblique prism = Area of the triangular base × Vertical height between two triangular bases

Vertical height = 6 cm

Volume = 63 cm³

From the formula,

63 = Area of the triangular base × 6

Area of the base = \frac{63}{6}

                            = 10.5 cm²

Therefore, area of the base is 10.5 cm².

4 0
3 years ago
Find the difference in length between a walking stick and a bumblebee PLS HELP HURRY​
Tanya [424]

Difference between the lengths of walking stick and lengths of bumble bee is 3\frac{4}{8} inch.

Solution:

Given data represents the length of the insects.

Length of the walking stick = 4 in

Length of the bumble bee = \frac{5}{8} in

Difference between their length

                                        $=4-\frac{5}{8}

                                        $=\frac{4}{1} -\frac{5}{8}

To make the denominator same, multiply and divide the first term by 8.

                                        $=\frac{32}{8} -\frac{5}{8}

                                        $=\frac{32-5}{8}

                                        $=\frac{27}{8}

Now, change improper fraction into mixed fraction, we get

                                         $=3\frac{4}{8}

Difference between the lengths of walking stick and lengths of bumble bee is 3\frac{4}{8} inch.

5 0
3 years ago
Explain proportionality to me 7th grade math ​
kari74 [83]

If two quantities <em>a</em> and <em>b</em> are directly proportional to one another, then both <em>a</em> and <em>b</em> change in the <u>same direction</u>.

For example, if the amount/volume of coffee I have in a cup is directly proportional to the total volume of the cup, then the larger the cup gets, the more coffee I can fill it with. On the other hand, if the cup gets smaller, the amount of coffee it can hold also gets smaller.

Both <em>a</em> and <em>b</em> don't necessarily change at the same rate, though, which means one of these needs to get appropriately scaled by some factor <em>k</em>, so that

<em>a</em> = <em>kb</em>

Continuing the coffee example: Suppose I only fill my cup halfway. If the total volume of the cup is <em>a</em>, then the amount of coffee I pour in is <em>b</em> = 1/2 <em>a</em>. So the relationship of these two quantities is governed by the equation,

<em>a</em> = 2<em>b</em>

and in this case, <em>k</em> = 2.

If instead <em>a</em> and <em>b</em> are inversely proportional, this means as one quantity changes, the other changes in the <u>opposite direction</u>.

Suppose I have two cups that I use for coffee that can both hold the same amount <em>k</em> if they are filled completely, but one cup is taller than the other. In order for both cups to be able to hold the same volume of coffee, the taller cup must have a thinner profile.

The cups are cylindrical, so that their volumes are equal to the products of the area of their base <em>a</em> and their height <em>b</em>. If one cup is twice as tall as the other, then for the smaller cup we could have

<em>ab</em> = <em>k</em>

and for the taller one,

<em>a</em> (2<em>b</em>) = <em>k</em>

But in order to get the same volume, the quantity <em>a</em> for the shorter cup must be cut in half to preserve equality:

(1/2 <em>a</em>) (2<em>b</em>) = <em>ab</em> = <em>k</em>

So one quantity is doubled (increases), while the other gets halved (decreases).

5 0
3 years ago
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