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Virty [35]
3 years ago
12

Solve -7 2/3+(-5 1/2)+8 3/4=

Mathematics
2 answers:
fomenos3 years ago
8 0

Answer:

Exact Form: -53/12

decimal form: -4.416

mixed number -4 5/12

Step-by-step explanation:

convert mixed numbers into improper fractions: -2 3/3 +(5 1/2)+ 8 3/4

convert mixed numbers into improper fractions: =11/2  =-\frac{23}{3}+\left(-\frac{11}{2}\right)+\frac{35}{4} =

-\frac{23}{3}+\left-\frac{11}{2}\right+\frac{35}{4}=-\frac{92}{12}-\frac{66}{12}+\frac{105}{12}

\frac{-92-66+105}{12}

add/subtract the numbers: -92-66+105=-53

-53/12

apply the fraction rule: \frac{-a}{b} = -\frac{a}{b\\}

=-\frac{53}{12}\\

Harrizon [31]3 years ago
3 0

Answer:

-53/12

Step-by-step explanation:

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Help! given 2(x-9)=-10 prove x=4 with statements and reasons
Sedbober [7]

Step-by-step explanation:

<u>Proof:</u>

<em>2</em><em> </em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>9</em><em>)</em><em> </em><em>=</em><em> </em><em>-</em><em> </em><em>1</em><em>0</em><em> </em><em> </em><em>when </em><em>x </em><em>=</em><em> </em><em>4</em>

<em>2</em><em> </em><em>(</em><em> </em><em>4</em><em> </em><em>-</em><em> </em><em>9</em><em>)</em><em> </em><em>=</em><em> </em><em>-</em><em>1</em><em>0</em>

<em>8</em><em> </em><em>-</em><em> </em><em>1</em><em>8</em><em> </em><em>=</em><em> </em><em>-</em><em>1</em><em>0</em>

<em><u>-</u></em><em><u>1</u></em><em><u>0</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u> </u></em><em><u>-</u></em><em><u>1</u></em><em><u>0</u></em><em><u> </u></em>..........hence proven

<u>Reasons </u>

- When you replace X with 4, you can clearly see that the equation is equal to -10.

sorry I couldn't answer accurately, but I hope this helps

8 0
2 years ago
In the supermarket a loaf of bread costs 37p how many loaves can david buy with a 2 coin ? How much money will be left over?
Rasek [7]

Answer: He can buy 5 loaves of bread.

After buying 5 loaves 15 p will be left.

Step-by-step explanation:

Given, In the supermarket a loaf of bread costs 37p .

To find: How many loaves can David buy with a \pounds 2 coin?

Since \pounds 1=100\text{ pence}

Then, \pounds 2=200\text{ pence}

Number of loaves he can buy = (Amount he has) ÷ (Cost of a loaf of bread)

= 200 p ÷ 37 p

=5\dfrac{15}{37}

i.e. he can buy 5 loaves of bread and 15 p will be left.

Hence, He can buy 5 loaves of bread.

After buying 5 loaves 15 p will be left.

6 0
3 years ago
The ratio of girls to boys is 2:3. There are 12 boys. How many<br> girls are there?
Marianna [84]

Answer:

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Step-by-step explanation:

2g = 3b

b = 12

g = girls

b = boys

2g = 3*12

2g = 36

g = 36/2

g = 18

5 0
2 years ago
Read 2 more answers
If f(x)=2x(With an exponent of 2) -3, find f(-2)
Mrac [35]

Answer:

  5

Step-by-step explanation:

Put -2 where x is and do the arithmetic.

  f(x) = 2x² -3

  f(-2) = 2(-2)² -3 = 2(-2)(-2) -3 = 8 -3

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3 0
3 years ago
Read 2 more answers
Can someone help please
neonofarm [45]

Answer:sorry i cant

Step-by-step explanation:

5 0
3 years ago
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