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yarga [219]
3 years ago
5

Give one example of when you would use the friendly numbers strategy to substract

Mathematics
1 answer:
harina [27]3 years ago
8 0
Like when you have 3-3 would be 0
You might be interested in
There should be 2 answers
Rudik [331]

|6m-2|=0\\\\\implies 6m-2 =0~~~~~~~~~~~~~;[\text{If}~ |x| = 0 ~\text{then}~ x = 0]\\\\\implies m = \dfrac 26 = \dfrac 13

4 0
2 years ago
Suppose Julio is a veterinarian who is doing research into the weight of domestic cats in his city. He collects information on 1
fomenos

Answer:

Estimate of the standard error of the mean = 0.38 lb

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = 10.87 lb

Sample size, n = 131

Standard deviation, σ = 4.31 lb

We have ti find the estimate of the standard error of the mean.

Formula for standard error:

S.E= \dfrac{\sigma}{\sqrt{n}}

Putting values, we get,

S.E = \dfrac{4.31}{\sqrt{131}} = 0.3766 \approx 0.38

0.38 lb is the standard error of the mean.

7 0
3 years ago
How long would it take a car to travel 20 miles if its average speed is 60 mph?
icang [17]
It would take 20 minutes to travel 20 miles at 60mph
7 0
3 years ago
Do these ratios form a proportion?
fredd [130]
Yes yes yes yes yes yes
4 0
3 years ago
Read 2 more answers
Two trucks leave a warehouse at the same​ time, traveling in opposite directions. The rate of the faster truck exceeds that of t
EleoNora [17]

Answer:

Speed of the slower truck = 57.5 miles/hour

Speed of the faster truck = 62.5 miles/hour

Step-by-step explanation:

Using missing information;

Assume;

Speed of the slower truck = a

Speed of the faster truck = a + 5

Distance traveled by the slower truck = d

Distance traveled by the faster truck = 600 - d

So,

a(5) = d ........ Eq1

(a+5)(5) = 600 - d

5a + 25 = 600 - d

So,

5a + 25 = 600 - 5a

10a = 575

a = 57.5

Speed of the slower truck = 57.5 miles/hour

Speed of the faster truck = a + 5

Speed of the faster truck = 57.5 + 5

Speed of the faster truck = 62.5 miles/hour

6 0
3 years ago
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