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3 years ago

Question 2 (10 points)

Mathematics

2 answers:

Sidana [21]3 years ago

7 0

Answer:

29 Sugar Cookies

Step-by-step explanation:

1/4 of 140 = 35 Chocolate Chip

1/7 of 140 = 20 Peanut Butter

2/5 of 140 = 56 M&M

So, (35 + 20 + 56) = 111

140 total cookies - 111 choc. chip, PB, and M&M = 29 Sugar Cookies that remain

There are 29 Sugar cookies!

<h2><u><em>Please mark brainliest!!! </em></u><em>=D</em></h2>

lara [203]3 years ago

5 0

Answer:

140-111=29

Step-by-step explanation:

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9. Combine the radical expression, if possible.

Anastaziya [24]

Answer:

we conclude that:

$3\sqrt{125}+4\sqrt{20}=23\sqrt{5}$

Hence, the last option i.e. $23\sqrt{5}$ is correct.

Step-by-step explanation:

Given the expression

$3\sqrt{125}+4\sqrt{20}$

Combining the radical expressions

$3\sqrt{125}+4\sqrt{20}$

let us first solve

$3\sqrt{125}$

$=3\sqrt{5^3}$

$=3\sqrt{5^2\cdot \:5}$

Apply radical rule: $\sqrt{ab}=\sqrt{a}\sqrt{b},\:\quad \:a\ge 0,\:b\ge 0$

$=3\sqrt{5^2}\sqrt{5}$

Apply radical rule: $\sqrt{a^2}=a,\:\quad \:a\ge 0$

$=3\cdot \:5\sqrt{5}$

$=15\sqrt{5}$

Thus,

$3\sqrt{125}=15\sqrt{5}$

similarly solving

$4\sqrt{20}$

$=4\sqrt{2^2\cdot \:5}$

Apply radical rule: $\sqrt{ab}=\sqrt{a}\sqrt{b},\:\quad \:a\ge 0,\:b\ge 0$

$=4\sqrt{2^2}\sqrt{5}$

Apply radical rule: $\sqrt{a^2}=a,\:\quad \:a\ge 0$

$=4\cdot \:2\sqrt{5}$

$=8\sqrt{5}$

Thus,

$4\sqrt{20}=8\sqrt{5}$

so we get

$3\sqrt{125}=15\sqrt{5}$

$4\sqrt{20}=8\sqrt{5}$

so the expression becomes

$3\sqrt{125}+4\sqrt{20}=15\sqrt{5}+8\sqrt{5}$ ∵ $3\sqrt{125}=15\sqrt{5}$ , $4\sqrt{20}=8\sqrt{5}$

$=23\sqrt{5}$ ∵ $15\sqrt{5}+8\sqrt{5}=23\sqrt{5}$

Therefore, we conclude that:

$3\sqrt{125}+4\sqrt{20}=23\sqrt{5}$

Hence, the last option i.e. $23\sqrt{5}$ is correct.

7 0

3 years ago

HELP!!!!! Correct only!

Jlenok [28]

Answer:811.5

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

If 7.29/9=0.81 then the quotient of 7.29/90 is 0.081. Use place value reasoning to explain the placement of the decimal point.

pochemuha

Who how who how who how who how Who how who how who how who how

5 0

3 years ago

What does 6t equal ?

never [62]

6 ft equals 72 inches or 1.829 meters

7 0

3 years ago

The dimensions of a square Wendy’s hamburger are length and width 4 in. and thickness 3/16 of an inch. The dimensions of a McDon

emmainna [20.7K]

Answer:

McDonald’s hamburger has a greater volume, compared to Wendy’s hamburger.

McDonald’s hamburger is 0.5 cubic Inch bigger.

Step-by-step explanation:

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pi * diameter

Volume of the circular hamburger =

pi * diameter * thickness

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rounded answer is 3.5 cubic

McDonald’s circular hamburger has a greater volume, compared to Wendy’s hamburger, a bit more then 0.5 cubic Inch bigger.

3 0

3 years ago