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3 years ago

Please help me with this math equation 6d - 11/2 = 2d - 13/2

1 answer:

4 0

Step 1: Simplify both sides of the equation.6d+−112=2d+−132Step 2: Subtract 2d from both sides.6d+−112−2d=2d+−132−2d4d+−112=−132Step 3: Add 11/2 to both sides.4d+−112+112=−132+1124d=−1Step 4: Divide both sides by 4.4d4=−14d=−14

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9.4+9.4-2.25+2.2-5.9+86.10+12.98-62.6

Luba_88 [7]

Answer:

49.33

Step-by-step explanation:

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3 years ago

What is 3/8 equivalent to

grin007 [14]

3/8 is equivalent to 0.375.

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3 years ago

Two trains leave New York at the same time heading in opposite directions. Train A travels at 4/5 the speed of train one. After

grandymaker [24]

<h3>Answer: </h3><h3>speed of train A = 44 mph</h3>

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Work Shown:

x = speed of train A

y = speed of train B

"train A travels 4/5 the speed of train B" (I'm assuming "train one" is supposed to read "train B"). So this means x = (4/5)y

distance = rate*time

d = x*7

d = (4/5)y*7 = (28/5)y represents the distance train A travels

d = y*7 = 7y represents the distance train B travels

summing those distances will give us 693

(28/5)y + 7y = 693

5*( (28/5)y + 7y ) = 5*693

28y + 35y = 3465

63y = 3465

y = 3465/63

y = 55

Train B's speed is 55 mph

4/5 of that is (4/5)y = (4/5)*55 = 4*11 = 44 mph

Train A's speed is 44 mph

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3 years ago

Maureen measured a house and its lot and made a scale drawing. The scale she used was

PIT_PIT [208]

The most appropriate choice for unitary method will be given by-

Length of driveway in the drawing is 3 inch

What is unitary method?

Unitary method is the method in which value of a single unit can be calculated from the value of a multiple unit and value of a multiple unit can be calculated from the value of a single unit.

Sometimes value of single unit is less than value of multiple unit

For example - cost of food and quantity of food

Sometimes value of single unit is more than value of multiple unit

For example- Number of men and time taken by those men to do a work

Here,

Scale used by Maureen is 1 inch = 8ft

Actual length of house's driveway = 24 feet

8 ft of room is equal to 1 inch on scale

1 ft of room is equal to $\frac{1}{8}$ inch on scale

24 feet of room is equal to $\frac{1}{8} \times 24$ inch on scale

24 feet of room is equal to 3 inch on scale

Length of driveway in the drawing is 3 inch

To learn more about unitary method, refer to the link-

brainly.com/question/24587372

#SPJ9

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1 year ago

Erik needs a plumber and must decide between two companies. For a service visit, Plumber A charges $85 to send a plumber, plus $

djverab [1.8K]

C. Plumber A and Plumber B will both charge $135 if they each work 2.5 h.

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3 years ago