All categories

3 years ago

Howard solved 6 math problems in 16 minutes.

Mathematics

2 answers:

Hatshy [7]3 years ago

7 0

6 problems in 16 minutes is equal to 30 problems in 80 minutes. Hope this answers your question

Digiron [165]3 years ago

6 0

I would say that A 80 minutes seems the correct answer

You might be interested in

Malcom is filling bags with rice . He starts with a 5 1/4 pound container of rice and fills each bag with 5/8 pounds of rice . H

timama [110]

Answer:

Malcolm would fill 8 bags of rice.

Step-by-step explanation:

The size of the container of rice = 5 $\frac{1}{4}$ pounds = $\frac{21}{4}$ pounds.

Each bag of rice has a capacity of $\frac{5}{8}$ pounds.

The number of bags of rice that Malcolm fills = $\frac{total quantity of rice}{capacity of each bag}$

= $\frac{21}{4}$ ÷ $\frac{5}{8}$

= $\frac{21}{4}$ x $\frac{8}{5}$

= $\frac{42}{5}$

= 8 $\frac{2}{5}$

Therefore, Malcolm would be able to fill 8 bags of rice.

6 0

3 years ago

Ten friends scored the following marks in their end-of-year math exam:

S_A_V [24]

Answer:

Given that

Marks of ten friends

23%, 37%, 45%, 49%, 56%, 63%, 63%, 70%, 72% and 82%

Mean = 56

Variance = 284.6

Standards deviation = 16.9

6 0

3 years ago

Exercise 12.1.1: Coin flips and events. About A coin is flipped four times. For each of the events described below, express the

butalik [34]

Answer:

a $Pr = 0.25$

b $Pr = 0.50$

c $Pr = 0.1875$

Step-by-step explanation:

Given

$n = 4$ --- number of times

$r = 2$ --- faces of a coin

First, is to determine the sample size.

This is calculated as:

$Size =r^n$

$Size =2^4$

$Size =16$

Solving (a): First and last slip is head

This event is represented as:

$E=\{HHHH, HHTH, HTHH, HTTH\}$

The probability is calculated as:

$Pr = \frac{n(E)}{Size}$

$Pr = \frac{4}{16}$

$Pr = 0.25$

b) At least 2 consecutive flips that is heads.

This event is represented as:

$E=\{HHHH,HHHT,HHTH,HHTT,THHH,THHT,HTHH,TTHH\}$

The probability is calculated as:

$Pr = \frac{n(E)}{Size}$

$Pr = \frac{8}{16}$

$Pr = 0.50$

c) First is tail and at least 2 consecutive flips is head.

This event is represented as:

$E=\{THHH,THHT,TTHH\}$

The probability is calculated as:

$Pr = \frac{n(E)}{Size}$

$Pr = \frac{3}{16}$

$Pr = 0.1875$

8 0

2 years ago

A basketball tournament contains 128 teams. Each round of the tournament half of the teams are eliminated . How many rounds are

Butoxors [25]

32 rounds.

If there are 128 teams in the beginning, we need to divide 128 by something to get 4,

128/32=4

4 0

2 years ago

Tenisha solved the equation below by graphing a system of equations.

Yuri [45]

Answer:

Option B.)

Step-by-step explanation:

Just took the test and got 100% :]

5 0

2 years ago