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aksik [14]
3 years ago
10

sam counted his heart beats while resting his heart beat 220 times in 4 minutes Sam heart beat at the same rate for the 4min .co

mplete the ratio of beats to min​
Mathematics
1 answer:
iVinArrow [24]3 years ago
4 0

Answer: 220:4 or 220 to 4

Step-by-step explanation:

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Unit rate word problems
uysha [10]

Answer:

$7.50

Step-by-step explanation:

Madison is planning to get some apples for her homemade pie. At the grocery store there is a display showing 5 apples for $12.50. How much money would it be if Madison wanted 3 apples?

8 0
3 years ago
the area of a room is 96 square feet. The length is (x+1) feet and the width is (x-3) feet. find the dimensions of the room
Delvig [45]

Answer:

length = 12 feet and width = 8 feet

Step-by-step explanation:

since the area = 96 ft² then

(x + 1)(x - 3) = 96 ( A = lw )

expand the factors on the left side

x² - 2x - 3 = 96 ( subtract 96 from both sides )

x² - 2x - 99 = 0 ← in standard form

(x - 11)(x + 9) = 0 ← in factored form

equate each factor to zero and solve for x

x - 11 = 0 ⇒ x = 11

x + 9 = 0 ⇒ x = - 9

but x > 0 ⇒ x = 11

length = 11 + 1 = 12 feet and width = 11 - 3 = 8 feet


6 0
3 years ago
Help me with this!!<br>I will give brainliest <br>35 p
joja [24]
A (b-c) = d
b-c = d/a
-c = (d/a) - b
-c = (d-ab) /a
c = (ab-d)/a
3 0
3 years ago
What is the value of x if 5^ x+2 =5^ 9 ? O x = - 11 O x = - 7 x = 7 x = 11 O O
Ratling [72]

Answer:

Step-by-step explanation:

5ˣ⁺² = 5⁹

log₅(5ˣ⁺²) = log₅(5⁹)

x+2 = 9

x = 7

8 0
3 years ago
What is the value of X?<br> -5x-5y=25<br> 3x+5y=-21
enyata [817]

Answer:

x = -2

Step-by-step explanation:

Solution:

-5x - 5y = 25    -(1)

3x + 5y = -21     -(2)

Adding (1) and (2),

-5x - 5y + 3x + 5y = 25 - 21

-5x + 3x -5y + 5y = 4

-2x = 4

x = 4 / -2

Therefore, x = -2

PLZ MARK ME AS BRAINLIEST!!!

6 0
3 years ago
Read 2 more answers
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