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olga_2 [115]
1 year ago
8

Help me pleaseeeeeeEEEEEE

Mathematics
1 answer:
Sliva [168]1 year ago
7 0
15. 22=4*5+2
16. 23=3+4*5
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John’s heart beat at a rate of 65 beats a minute when he is awake and 50 beats a minute when he sleeps (8 hours). How many times
Anarel [89]
His heart beats 86,400 times within a 24 hour period.
60 minutes in 1 hour, so you would multiply 8 hours by 60 mins, giving you 480 mins. 24 hours- 8 (time he's asleep) will give you 16. 16 * 60 will give you 960 minutes. 480 minutes (when he's asleep) * 50 beats a minute = 24,000. 
960 (when he's awake) * 65 beats a minute = 62,400. add 24,000 and 62,400 = 82,400 beats in 24 hours.
8 0
3 years ago
Scott said that 0.09 was a bigger number than 0.1.
poizon [28]

he is wrong because 0.1 is also 0.10 greater than 0.09

4 0
3 years ago
Can anyone help me on that question too its math plsss​
Assoli18 [71]

Answer:

2x= 40°

5x= 100°

Step-by-step explanation:

2x on opposite angle because it is an isosceles triangle

2x+ 2x+ 5x = 180° (angles of a triangle)

9x= 180

x= 180/9

x= 20°

Sub

2(20)= 40°

5(20)= 100°

7 0
2 years ago
I need helppp now I’m timed!!<br> What is the value of x?
svetlana [45]

Answer:

x = 54

Step-by-step explanation:

2x+2 = 3x-52

2x+54 = 3x

54 = x

6 0
2 years ago
4. Mother pays Php 199.50 for 2.85 kg of rice. How much does a kilogram of rice cost?
Gnesinka [82]

Answer:

B. 70

Step-by-step explanation:

If 199.50 PHP gets you 2.85KG of rice.

A kilogram of rice would cost = Total Amount / Total Weight.

199.50/2.85

= 70PHP

7 0
2 years ago
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