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mariarad [96]
3 years ago
15

Which are partial products for 56 × 31?

Mathematics
1 answer:
Alexeev081 [22]3 years ago
7 0
A.C.D. Is the right ones
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A group of 8 friends went to lunch and spent a total of $76, which included the food bill and a tip of $16. They decided to spli
Rudik [331]

Answer:

1) The equation 1/8(x+16)=76/8 represents the situation, where x is the food bill.

2) The solution x=60 represents the total food bill.

These both answers are correct.

Step-by-step explanation:

Since there are 8 group of friends, and the total amount spent by them is $76 including the tip i.e $16.

If x is the food bill our equation can be:

(x+16)/8 = 76/8

Solving the equation

(x+16)/8 = 9.5

x+16= 9.5*8

x= 76 -16

x= 60

The food bill is x=60.

6 0
3 years ago
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Need help with a simple problem 2^x=3^x+1
KiRa [710]
For x\ \textgreater \ 0, 2^x\ \textless \ 3^x, all the more 2^x\ \textless \ 3^x+1, therefore no solution.

For x=0, we have 2^0=3^0+1 \Rightarrow 1=1+1 \Rightarrow 1=2. Obviously that' false.

For x\ \textless \ 0 both 2^x and 3^x, where 2^x\ \textgreater \ 3^x, belong to the range (0,1), then 3^x+1 belong to the range (1,2).
Those ranges don't have a common part, therefore, again, no solution.

So, the equation 2^x=3^x+1 doesn't have a solution.

4 0
3 years ago
PLEASE HELP!!!!!!!!!!!! WILL GIVE CORRECT ANSWER BRAINLIEST!!!!!!!!!
Korolek [52]

Answer:22.75

Step-by-step explanation:

8 0
3 years ago
What is the least common denominator of the rational expressions below?<br> 1/x^2 - 4/3x^2+15x
vladimir1956 [14]

Answer:

The LCD is 3x²

The other two denominators can be factors of 3x²

Step-by-step explanation:

To get the equivalent fractions, divide the original denominator into the LCD, then multiply the original numerator by the quotient.

For the first term: 1/x²

3x² ÷ x² = 3 3×1=3 The equivalent is 3/3x²

Second term: Leave it as it is.

For the third term: 15x

The implied denominator is 1

3x² ÷ 1 = 3x² 3x² × 15 = 135x²

The equivalent is 135x²/3x²

<em>To </em><em>check</em><em> </em><em>the </em><em>validity</em><em>,</em><em> </em><em>substitute</em><em> </em><em>a </em><em>value</em><em> </em><em>for</em><em> </em><em>x </em><em>and </em><em>calculate</em><em> </em><em>the</em><em> </em><em>numbers</em><em>.</em>

<em>For</em><em> </em><em>example</em><em> </em><em>let </em><em>x </em><em>=</em><em> </em><em>3</em>

<em>The </em><em>original</em><em> </em><em>expression</em><em> </em><em>becomes</em><em> </em>

<em>1/3² + 4/3(3²) - 15(3)</em>

<em>1</em><em>/</em><em>9</em><em> </em><em>+</em><em> </em><em>4</em><em>/</em><em>2</em><em>7</em><em> </em><em>-</em><em> </em><em>4</em><em>5</em>

<em>With</em><em> </em><em>the</em><em> </em><em>LCD </em><em>it </em><em>is</em>

<em>3</em><em>/</em><em>2</em><em>7</em><em> </em><em>+</em><em> </em><em>4</em><em>/</em><em>2</em><em>7</em><em> </em><em>-</em><em> </em><em>1</em><em>2</em><em>1</em><em>5</em><em>/</em><em>2</em><em>7</em>

5 0
3 years ago
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Pls help I don’t know this
Romashka [77]

Answer:

1 inche

Step-by-step explanation:

3 0
3 years ago
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