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2 years ago

Mel buys paper plates and paper cups for an event.

2 answers:

8 0

For this you need to find the lcm of 36 and 60 = 180
therefore :
Mel needs to buy 5 packets of cups

(36*5=180cups)
and 3 packets of plates (60*3=180 plates)

vesna_86 [32]2 years ago

3 0

Answer:

3 packs of plates; 5 packs of cups

Step-by-step explanation:

First we have to find the least common multiple of the two. (factor tree, birthday cake) (Strategies not shown) You should get 180.

Next we have to see how many times each number goes into 180.

60 times 3 is 180 plates. 36 times 5 is 180.

That's your answer. Hope this helps!

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Find the measure of the largest angle in ABC if a = 12, b = 8 and c = 13.

Papessa [141]

Answer:

$C=78.28^{\circ \:}$

Step-by-step explanation:

We are given a triangle

whose sides are

a=12

b=8

c=13

Since, c is largest among them

So, angle C must be largest angle

we can find angle C

we can use law of cosine formula

$cos(C)=\frac{a^2+b^2-c^2}{2ab}$

now, we can plug values

$cos(C)=\frac{12^2+8^2-13^2}{2\times 12\times 8}$

$cos(C)=\frac{13}{64}$

now, we can find angle

we get

$C=78.28^{\circ \:}$

5 0

2 years ago

Find the surface area of the composite figure.

WINSTONCH [101]

Answer:

382 cm²

Step-by-step explanation:

Front face + Back face:

A = 2(a + b)h/2

A = 2(14 cm + 8 cm)(7 cm)/2

A = 154 cm²

Left face:

A = 7 cm × 6 cm = 42 cm²

Right face:

A = 9 cm × 6 cm = 54 cm²

Bottom face:

A = 14 cm × 6 cm = 84 cm²

Top face:

A = 6 cm × 8 cm = 48 cm²

Total surface area =

= (154 + 42 + 54 + 84 + 40) cm²

= 382 cm²

3 0

7 months ago

A train is traveling at a constant speed. The table shows the distance the train travels at different times during the trip. How

SpyIntel [72]

The train is traveling at 165 mph

495/3=165
825/5=165
1155/7=165
1485/9=165

8 0

3 years ago

Hlp!

zzz [600]

Answer:

Option B

x ≥ (-5)

Step-by-step explanation:

<h3><u>Given</u>;</h3>

-3(x + 4) ≥ x + 8

So,

-3(x + 4) ≥ x + 8

-3x – 12 ≥ x + 8

Add both sides 12 we get,

-3x – 12 + 12 ≥ x + 8 + 12

-3x ≥ x + 20

Similarly, subtract x from both sides we get,

-3x – x ≥ x – x + 20

-4x ≥ 20

Then, divide both sides by (-4) we get,

-4x/(-4) ≥ 20/(-4)

x ≥ -5

Thus, The answer is x ≥ (-5).

7 0

2 years ago

Solving Exponential and Logarithmic Equations In Exercise, solve for x.<br> 100(1.21)x = 110

SVETLANKA909090 [29]

Answer:X=110/121

Step-by-step explanation:

Multiply 100 by 1.21 then by x

121x=110

Divide both side by 121

X=110/121

X=0.91

8 0

3 years ago