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3 years ago

27 list the factor is this prime or composite

2 answers:

6 0

The factors of 27 are 1, 3, 9, and 27 .

A prime number has only two factors. They are ' 1 ' and itself.
27 has four factors, so it's not prime.

alexgriva [62]3 years ago

5 0

27 is not a prime number because it has more than 2 factors other than 1 and itself. 27's factors are 1, 3, 9, and 27.

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Miss penny inherits £650. She decides to save some of the money and spend the rest. The ratio of saving to spending money is 9:4

blsea [12.9K]

Answer:

Saving=£450

Spent=£200

Step-by-step explanation:

Ratio of saving to spending is 9:4

She inherits £650

So to determine her saving

It will be

9+4=13

Since her saving is 9

So, 9/13 × 650

5850/13

=450

So her saving is£450

To determine what she spent

4/13 × 650

2600/13

200

Saving=£450

Spent=£200

3 0

2 years ago

Read 2 more answers

The circle graph above shows the results of a survey of 660 students in a school. How many students participate in sports?

sleet_krkn [62]

Answer:

231

Step-by-step explanation:

35 % = 0.35

35 % of the students participate in sports

No. of students participating = 0.35 × 660 = 231

5 0

2 years ago

Find the equation of the line specified. The line passes through the points (7, -7) and (6, -5)

vova2212 [387]

Answer:

a. y = -2x + 7

Step-by-step explanation:

First, find the slope by plugging the points into the slope formula, $\frac{-7+5}{7-6}$ , which equals -2. Then use the slope and the point (7,-7) to make an equation in slope-point form. y+7=-2(x-7), finally solve for y to get y=-2x+7.

7 0

3 years ago

17. If a triangle has sides of 21 and 36, what is the range for the shortest side?

Leona [35]

Given a = 7 and b = 13, this gives us for c:

6 < c < 20, i maybe be wrong

6 0

3 years ago

When graphing the inequality y ≤ 2x − 4, the boundary line needs to be graphed first. Which graph correctly shows the boundary l

Volgvan

Answer:

See Below

Step-by-step explanation:

The boundary line follows the graph of y = 2x - 4 because it represents the line of maximum or minimum values the graph could take. y = 2x - 4 has a y-intercept of -4 because it is in slope-intercept form. It also has a slope of 2, so to find another point on the line, you can go up two and right one. Also, this inequality has a solid line because it is "less than or equal to" and a solid line represents the values that equal.

6 0

2 years ago