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max2010maxim [7]
2 years ago
11

A cyclist travels 4 miles in 20 minutes and then a further 6 miles in 30 minutes without stopping. Calculate the cyclist's avera

ge speed in mph.​
Mathematics
1 answer:
kodGreya [7K]2 years ago
4 0

Answer:

11 miles per hr because 10 miles took 50 minutes so add 1 mile and it is 1hr. Which is 11 miles per hr

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Use inverse operation to solve the equation t - 13 = -29
Nata [24]

Answer:

-16

Step-by-step explanation:

-29+13 is -16

and -16-13 is -29.

5 0
3 years ago
As the Type II error, β,of a statistical test increases, the power of the test _____________.
shutvik [7]

Answer:

decreases.

Step-by-step explanation:

Type II error is one in which we fail to reject the null hypothesis that is actually false. Null hypothesis is a statement that is to be tested against the alternative hypothesis and then decision is taken whether to accept or reject the null hypothesis. The power of Type II error is 1 - \beta. As the power increases the probability of Type II error decreases.

6 0
3 years ago
At a farm the ratio of cows to horses was 9:2. if there were 72 cows at the farm, how many horses were there?
OLga [1]

ratio of 9:2

 means for every 9 cows there are 2 horses

72/9 = 8

 8 x 2 = 16

 there are 16 horses

4 0
3 years ago
Read 2 more answers
Plz Help
sweet [91]
For part A: the constant is 83.50. the variable would be c and w. and the coefficient would be 10c or 15w. 

part B: so 10(4)+15(15)+83.50 -----> 10x4= 40------> 40+15(15)+83.50---->15x15=225
40+225+83.50=348.50

part C The coefficient would change because a constant is always constant, a variable is just a letter standing in for a number which would make the coefficient the one that changes for $10 to $20.
hope that help!
6 0
3 years ago
∠A and ∠B are supplementary, and ∠A and ∠C are supplementary. Which conclusion is valid? Select one: A. ∠B and ∠C are supplement
zysi [14]

Option D is the correct answer.

Answer:

D. ∠B and ∠C are congruent.

Step-by-step explanation:

Since, ∠A and ∠B are supplementary.

Therefore,

∠A + ∠B = 180°.....(1)

Since, ∠A and ∠C are supplementary.

Therefore,

∠A + ∠C = 180°.....(2)

From equations (1) & (2)

∠A + ∠B = ∠A + ∠C

=> ∠B = ∠C

Hence, ∠B and ∠C are congruent.

4 0
3 years ago
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