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Sveta_85 [38]
2 years ago
13

HELLPPP!!!!!!!!!!!!!!!Liz's resting heart rate is 64 beats per minute. During a recent workout, she measured her heart rate to b

e 112 beats per minute. By what percentage did her heart rate increase during her workout?
Mathematics
2 answers:
svetoff [14.1K]2 years ago
8 0

Answer:

57.4

Step-by-step explanation:

kkurt [141]2 years ago
5 0

Answer:

75%

Step-by-step explanation:

do you need the work?

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If A and B are nonzero integers with the same signs is the product negative or postitive
melisa1 [442]
Remember.

positive number x positive number = positive number
positive number x negative number = negative number
negative number x positive number = negative number
negative number x negative number = positive number

So if both numbers have the same sign, either both positive or both negative, then the product will be positive.
3 0
3 years ago
Michael and Landon work at a dry cleaners ironing shirts. Michael can iron 40 shirts per hour, and Landon can iron 20 shirts per
BartSMP [9]

Answer:

Michael worked 4 hours and Landon worked 10 hours.

Step-by-step explanation:

Michael can iron 40 shirts each hour, so in xx hours he can iron 40x40x shirts. Landon can iron 20 shirts each hour, so in yy hours he can iron 20y20y shirts. The total number of shirts ironed 40x+20y equals 360:

40x+20y=360

40x+20y=360

Since Michael and Landon worked a combined 14 hours, we know x+yx+y must equal 14.

x+y=14

Write System of Equations:

​

40x+20y= 360

x+y=14

Solve for y in each equation:

​

40x+20y = 360  x+y = 14 20y = -40x+360  

\frac{-20y}{20} =\frac{-40x+360}{20}

y = -2x+18

​

 

​

7 0
3 years ago
Solving two step inequalities
MariettaO [177]

Answer:

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4 0
3 years ago
joshua drinks 8 cups of water a day. The recommended daily amout is given in fluid ounces.How many fluid ounces of water does he
olga nikolaevna [1]
1 cup = 8 fluid oz

8 × 8 = 64 

So Joshua drinks 64 fluid ounces a day

Hope this helped. Have a great day!
5 0
2 years ago
Read 2 more answers
PLS HELP ME WITH 42!! (SHOW WORKKK!!!) + LOTS OF POINTS!!
spayn [35]
We can represent the cost of the notebooks with by saying 0.75n, and the cost of the pens by saying 0.55p.

0.75n+0.55p will be the total cost before tax.  Now, we need to add on tax.  Tax will be 0.0625 times the total amount, so we can represent the cost by saying 

(0.75n+0.55p) + 0.0625(0.75n+0.55p), so the answer is B.
3 0
3 years ago
Read 2 more answers
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