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Nadusha1986 [10]
3 years ago
15

Mr. Johnson's math class has twice as many students as Mrs. Jones' math class.

Mathematics
2 answers:
kirill [66]3 years ago
8 0

Answer: 4x54=216

Step-by-step explanation:

Well you don’t need to count in mr smiths math class because all the classes has 54 so um I did 4x54 hoped this helped :)

Rudiy273 years ago
8 0

Answer:

Mr Smith: 24

Mr Johnson: 20

Mrs Jones: 10

24+20+10=54

Step-by-step explanation:

So I took a random number, and that number was 24.

I took 24 and put at as my testing in Smith's class.

If Mr. Smith had 24 students then, (x-4=Mr Johnson's class) Mr Johnson has 20 students, and half of that would be the amount of students in Mrs Jones class, so that equals 10.

J = Jones

Jo = Johnson

S = Smith

Finally  S+Jo+J=54

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Jason runs around a 400-meter track for training. During the month of September he ran around the track 520 times. How many kilo
marishachu [46]

Answer:

208 km

16 tablets per day

Step-by-step explanation:

Given:

Length of training track run by Jason = 400 m

Number of times Jason ran on the track = 520

Therefore,

The total length covered by Jason = 520 × 400 = 208,000 m

now,

1 Km = 1000 m

thus,

208,000 m = \frac{\textup{208000}}{\textup{1000}}

or

= 208 km

b) Amount of calcium carbonate in a tablet = 500 mg = 0.5 g

Maximum amount of calcium carbonate that can be taken = 8 g

hence,

the maximum number of tablets that she can take

= \frac{\textup{Maximum amount of calcium carbonate that can be taken}}{\textup{Amount of calcium carbonate in a tablet}}

= \frac{\textup{8}}{\textup{0.5}}

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8 0
4 years ago
If a Robin returns to the bird feeder every 5 days and a Blue Jay returns every 3 days, how many days before they return on the
scoray [572]
I’m pretty sure the answer is 7
4 0
3 years ago
Use the distributive property to solve the equation 3.2 = 4/5 (b - 5)
djyliett [7]

Answer:

b=1

Step-by-step explanation:

3.2 = \frac{4}{5} (b - 5)\\3.2 = \frac{4}{5}b - \frac{4}{5} *5\\3.2 = \frac{4}{5}b - 4\\3.2 = -3\frac{1}{5}b\\3.2 = -3.2b\\1 = b\\b= 1

7 0
4 years ago
The doubling period of a bacteria population is 10 minutes. At time t = 110 minutes, the bacterial population was 800.
goldenfox [79]

The initial population at time t = 0 was 0.39 while the size of the bacteria population after 4 hours was 6553600

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let y represent the bacteria population at time t. a represent the initial population at t = 0. Since the doubling period of a bacteria population is 10 minutes, hence:

y=a(2)^\frac{t}{10}

At time t = 110 minutes, the bacterial population was 800. Hence:

800=a(2)^\frac{110}{10} \\\\a = 0.39

At 4 hours (240 minutes):

y=0.39(2)^\frac{240}{10} =6553600

The initial population at time t = 0 was 0.39 while the size of the bacteria population after 4 hours was 6553600

Find out more on equation at: brainly.com/question/2972832

#SPJ1

4 0
2 years ago
Please help me , fast
Vesnalui [34]

Answer:

0.3 with the hat ? the answer is first no, then it's a repeated decimal.

Step-by-step explanation:

5 0
3 years ago
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