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alexandr402 [8]
3 years ago
8

Work out the lowest common multiple (LCM) of 20, 30 and 40​

Mathematics
1 answer:
attashe74 [19]3 years ago
5 0
The LMC of those numbers is 120! (Hope this helps)
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A ramp leading into a building makes a 15 degree angle with the ground. The end of the ramp is 10 feet from the base of the buil
stiks02 [169]

Answer:

The length of the ramp is x = AC = 10.35 feet

Step-by-step explanation:

From the ΔABC

AC = x = length of ramp

BC = 10 feet

\theta = 15°

\cos 15 = \frac{BC}{AC}

\cos 15 = \frac{10}{x}

x = 10.35 feet

Therefore the length of the ramp is x = AC = 10.35 feet

5 0
4 years ago
Kayson mixes 300 milliliterss of spinach, 200 mL of berries, and 42 mL of dressing to make a salad. There are sss milligrams of
Leya [2.2K]

Let T be total number of milligrams of vitamin C in our salad.

We have been given that there are s milligrams of vitamin C per milliliter of spinach, B mg per milliliter of berries, and D mg per milliliter of dressing.

Let us find how much mg of vitamin C our each ingredient of salad will have.

We have been given that a salad contains 300 milliliters of spinach, 200 ml of berries, and 42 ml of dressing.  

\text{Mg vitamin C in 300 ml spinach}=300\cdot\text{s mg}

\text{Mg vitamin C in 200 ml berries}=200\cdot\text{B mg}

\text{Mg vitamin C in 42 ml dressing}=42\cdot\text{D mg}

To find total milligrams of vitamin C in our salad we will add milligrams of vitamin C in each of three ingredients of salad.

T=(300s+200B+42D)\text{ mg}

Therefore, our desired expression will be T=(300s+200B+42D)\text{ mg}.

7 0
3 years ago
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Write x as a logarithm in the following: 10^x=7
pochemuha

Answer:

x = log 7

Step-by-step explanation:

10^x=7

Take the log base 10 on each side

log10 (10^x)=log10 (7)

We dont need to write the 10, it is implied

log(10^x)=log (7)

The exponent  goes out front since log a^b = b log a

x log 10 = log 7

log 10 = 1 since the base is 10 log10(10) =1

x = log 7

6 0
3 years ago
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The graph shows the relationship between mass of hamster food and the number of days it takes Gabin's hamster to eat it. What do
Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

It’s b

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3 years ago
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Simplify the expression.<br><br> Please add an explanation if you understand how to do this.
pickupchik [31]

Answer:

2x^31

Step-by-step explanation:

~Simplify the expression

2x^29/x^-2

~Apply quotient rule [ a^b/a^c = a^b-c ]

2x^31

Best of Luck~

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