All categories

3 years ago

Which of these represents categorical data?

Mathematics

1 answer:

Viktor [21]3 years ago

7 0

Answer:

the answer is D) the most popular foods in the cafeteria

~batmans wife dun dun dun....

You might be interested in

3) Of the 20 cookies at the bake sale, 35% are gingerbread. How many

KIM [24]

Answer:

the answer is 8. 75.

Step-by-step explanation:

25×35% = 8.75

7 0

2 years ago

A piece of timber is x cm long. 7 cm is cut off. How much is left?

anygoal [31]

Answer:

x-7>0

Straight answer: x-7

Step-by-step explanation:

Assuming that the timber is X cm long and 7cm was cut off, there remaining amount is x - 7cm. In order for 7cm to be cut off, the timber must have been > 7cm long => x > 7 => x - 7 > 0

3 0

2 years ago

High grade steel consists of 85% iron and 15% magnese. Low grade steel consists of 67% iron and 33% mag ese. NASA orders 500 ton

Mamont248 [21]

Answer:

$361\dfrac{1}{9}$ tons of high steel and $138\dfrac{8}{9}$ tons of low steel

Step-by-step explanation:

Let x be the number of tons of high grade steel and y be the number of tons ow low grade steel needed.

In x tons of high grade steel there are

$0.85x$ tons of iron

$0.15x$ tons of magnese

In y tons of low grade steel there are

$0.67y$ tons of iron

$0.33y$ tons of magnese

NASA orders 500 tons of steel, so

$x+y=500$

and specifies that it must be in the proportion 80% iron and 20% magnese, so

$0.85x+0.67y=500\cdot 0.8\\ \\0.85x+0.67y=400$

From the first equation,

$x=500-y$

Substitute it into the second equation:

$0.85(500-y)+0.67y=400\\ \\425-0.85y+0.67y=400\\ \\-0.18y=-25\\ \\y=\dfrac{2,500}{18}=138\dfrac{8}{9}\ tons\\ \\x=361\dfrac{1}{9}\ tons$

7 0

3 years ago

Which number can each term of the equation be multiplied by to eliminate the fractions before solving?

Andru [333]

5 hope this helps good luck!!

3 0

3 years ago

Of the marbles in a bag 5 are red 4 are yellow and 4 are blue Sandra will randomly choose one marble from the bag fill in the bl

timurjin [86]

Answer:

A. 4/13

B. Likely.

4 0

2 years ago