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2 years ago

Evaluate the expression 3.5x when x is 2.

Mathematics

2 answers:

Vesna [10]2 years ago

8 0

Answer:

X= 7

Step-by-step explanation:

Since x= 2 you would plug it in 3.5 times 2 = 7

Sliva [168]2 years ago

7 0

Answer:

Step-by-step explanation:

You might be interested in

Which equation represents the situation below if "c" represents the number of chocolate chip cookies?Heather baked 200 cookies o

lisov135 [29]

Answer:

200 - 65 = c

Step-by-step explanation:

You would need to subtract the 65 oatmeal cookies that Heather has from the 200 in total. You would then get how many chocolate chip cookies that Heather would have left. Hope this helped.

4 0

2 years ago

3x+ 32 +7x - 22 = 180

Sedaia [141]

Add 3x and 7x because they’re on the same and when you added it you’ll get 10x and than do 32+-22 and you’ll get 10 because 32-22 is 10 and you subtract the 10 to 180 and you’ll get 10x=170 and divide 170 by 10x to get x by itself when you divided you’ll get x=17 and that’s the answer.

6 0

3 years ago

Part B

Troyanec [42]

Answer:

Part A) The length of a straight line between the school and the Fire Station is $4.6\ miles$

Part B) The length of a straight line between the school and the hospital is $2.1\ miles$

Step-by-step explanation:

The complete question in the attached figure

Let

The positive x-coordinates ----> East

The positive y-coordinates ----> North

The negative x-coordinates ----> West

The negative y-coordinates ----> South

take the point A (0,0) as the Middle School (reference point)

Part A) we have

Town Hall is located 4.3 miles directly east of the Middle School

The coordinates of Town Hall are B(4.3,0)

The Fire Station is located 1.7 miles directly North of Town Hall

The coordinates of Fire Station are C(4.3,1.7)

What is the length of a straight line between the school and the Fire Station?

Remember that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

A(0,0) and C(4.3,1.7)

substitute

$d=\sqrt{(1.7-0)^{2}+(4.3-0)^{2}}$

$d=\sqrt{(1.7)^{2}+(4.3)^{2}}$

$d=4.6\ miles$

Part B) we have that

The hospital is 3.1 miles west of the fire station

The coordinates of the hospital are D(4.3-3.1,1.7)

D(1.2,1.7)

What is the length of a straight line between the school and the hospital?

Remember that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

A(0,0) and D(1.2,1.7)

substitute

$d=\sqrt{(1.7-0)^{2}+(1.2-0)^{2}}$

$d=\sqrt{(1.7)^{2}+(1.2)^{2}}$

$d=2.1\ miles$

7 0

3 years ago

Which number is multiple of 13? A) 27 B) 44 C) 51 D) 65

In-s [12.5K]

Answer:

D, 65 is a multiple of 13

Step-by-step explanation:

13 ,26 ,39, 52, 65, 78 ,91, 104 ,117, 130 ,143, 156, 169, 182 ,195 ,208 ,221, 234, 247, 260 ,273 ,286 ,299 ,312, 325, 338, 351, 364, 377, 390, 403, 416, 429, 442, 455 ,468, 481 494, 507, 520, 533, 546, 559, 572, 585, 598, 611, 624, 637,

8 0

3 years ago

Read 2 more answers

Find the distance between the pair of points. Round your answer to the nearest tenth if necessary.

Kaylis [27]

Answer:

The distance between the pair of points is 12.0 (to the nearest tenth)

Step-by-step explanation:

The distance between a pair of points in a coordinate system is found by the formula:

d = $\sqrt({x_2-x_1)^2+(y_2-y_1)^2}$