All categories

3 years ago

Is 45×18 = equal to (40×10) + (40×8) + (5 × 10 + (5×8)

Mathematics

1 answer:

astraxan [27]3 years ago

5 0

Answer:

Yes it is equal to that

Step-by-step explanation:

hope it helps

You might be interested in

How to solve system of equation word problems

Elza [17]

All you have to do is find the important info and use it and do whatever and all you have to do is take the numbers do the question and ur done :D

8 0

4 years ago

Read 2 more answers

Help please I’m confused

kipiarov [429]

Answer:

h = 5.4

Step-by-step explanation:

Basically these are 2 similar triangles. That means:

Corresponding sides are proportional.

We can set up a ratio of each triangle separately and equate, cross multiply and solve for "h".

h corresponds to 2.4

2.9 corresponds to 1.3

Setting up the ratio and solving for h:

$\frac{h}{2.4}=\frac{2.9}{1.3}\\1.3h=2.4*2.9\\1.3h=6.96\\h=\frac{6.96}{1.3}\\h=5.35$

Rounded to 1 decimal place,

h = 5.4

7 0

3 years ago

A 13.5-meter ladder leans against a brick wall and the ladder makes a 75∘ with the wall. The distance d the ladder goes up the w

Alex73 [517]

Answer:

3.5 m

Step-by-step explanation:

Use Pythagorean theorem to find the distance (d) the distance goes up the wall = adjacent to the angle 75° that is formed with the wall.

Length of ladder = the hypothenuse = 13.5 m

Thus, we would use:

Cos75 = adjacent/hypothenuse

Cos 75 = d/13.5

Multiply both sides by 13.5

13.5*cos(75) = d

13.5*0.2588 = d

3.4938 = d

d ≈ 3.5 m (nearest tenth)

3 0

4 years ago

I need help with math

Nata [24]

Answer:

Question 13. I believe is C.

Step-by-step explanation:

take your area of the face you are given aka your 7 5/6 and multiply it by six since there are six faces.

You can convert the mixed number to an improper fraction

$7 \frac{5}{6}$ = denominator times the whole number ( 6x7)= then add the numerator (42+5)= $\frac{47}{6}$

Then multiply by six to get your answer

I'm not completely sure about question number fourteen so I am not answering it.

8 0

3 years ago

en la tienda la cuquita vende queso cortado en trosos de diferentes pesos calculen presios y pesos para completar la infomacion

telo118 [61]

answer 143.00 Step-by-step explanation:

5 0

3 years ago

Is 45×18 = equal to (40×10) + (40×8) + (5 × 10 + (5×8)​

Is 45×18 = equal to (40×10) + (40×8) + (5 × 10 + (5×8)