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Aleksandr-060686 [28]
3 years ago
15

Help please! (seventh grade math)

Mathematics
2 answers:
Pavel [41]3 years ago
7 0

Answer:

9

Step-by-step explanation:

If original rect was 5 square units and if new rect is 45 square units, then

scale factor  = 45/5 = 9

lawyer [7]3 years ago
7 0

Answer:

The scale factor is 3

Step-by-step explanation:

The area of rectangle N is 5 units

The area of rectangle P is 45 units

Distance is times the scale factor

Area is times the scale factor squared

Volume is the scale factor cubed

Area of rectangle N * scale factor  squared = Area of rectangle P

5 * SF ^2 = 45

Divide each side by 5

5/5 * SF ^2 = 45/5

SF ^2 = 9

Now we need to take the square root of each side to find the scale factor

sqrt(SF ^2) = sqrt(9)

SF = 3

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Josh wants to put a fence around his rectangular garden. The garden is 6 feet bt 15 feet. How much fencing must he purshase ?
Anna35 [415]

Since the garden is a rectangle, there are 2 sides that are 6-ft long
and two sides that are 15-ft long.

So he needs  (2 x 6) + (2 x 15) = (12) + (30) = 42-ft of fence.  Minimum.
6 0
4 years ago
the equation of a line is y = 3. write an equation in slope-intercept form of a line parallel to y = 3 that passes through (0, 6
Pavel [41]
Parallel lines have equal gradients;
Gradient of line 2 is thus 0
y=c
Replacing value of y=6 gives
c=6
Equation of the line is thus y=6
6 0
3 years ago
What is 2.3 less than 5
djyliett [7]

Answer:

5-2.3=2.7

Step-by-step explanation:

put into an equation format, 2.3 less than 5 is 5-2.3

4 0
3 years ago
Urgent Math Help Needed ASAP
Marta_Voda [28]

Answer:

Fourth option: 30 days

Step-by-step explanation:

We three path to complete the project:

Path A:

A1 → A2 → A3

10 days → 8 days → 9 days = 27 days


Path B:

B1 → B2 → B3

2 days → 7 days → 3 days = 12 days


Path C:

C1 → C2 → C3

10 days → 8 days → 12 days = 30 days


Then the duration of the critical path is 30 days, we can't conclude the project until each path has finished

7 0
4 years ago
You are preparing to tile a rectangular room that is 15 1/2 feet by 18 1/2 feet in size. the tiles are square measuring 12 inche
Bumek [7]

Find the area of the room by multiplying the length by the width:

Area of room = 15.5 x 18.5 = 286.75 square feet.

Divide the total area of the room by the area of a box to find the number of boxes needed.

286.75 / 25 = 11.47

Since you can't buy a partial box, round up to the nearest whole number.

You need B. 12 boxes total.

4 0
4 years ago
Read 2 more answers
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