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3 years ago

What is -1 1/3 - 4 2/7=

Mathematics

2 answers:

Colt1911 [192]3 years ago

7 0

-101/21 but how is it possible

nevsk [136]3 years ago

3 0

Answer:

-5 13/21

Step-by-step explanation:

-1 1/3 ----> -1 7/21. (3 * 7 =21). (1 * 7 = 7)

-4 2/7 ----> -4 6/21. (7 * 3= 21). (2 * 3= 6)

then add

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Two consecutive odd integers whose sum is 196

Scrat [10]

X
x+2

x + x + 2 = 196
2x = 194
x=97

The two consecutive odd integers are 97 and 99.

8 0

3 years ago

Substitute the values of x and y into the expression -3x^2 + 2y^2 + 5xy - 2y + 5x^2 - 3y^2. Match that value to one of the numbe

Tomtit [17]

1.=-1
2.=-11.25
3.=14
4.=0.44
5.=1.665
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4 0

3 years ago

The number of trucks registered in a city increases by 10% each year. Initially, there were 100 trucks registered. There were 11

Alex787 [66]

Answer:

214 trucks

Step-by-step explanation:

Un= amount after a certain time period

Uo= initial amount

n= number of time periods

i= interest rate

Equation used : Un= Uo (1+i)^n

Un=100(1.1)^8 = 214.36 , but you can't have half a truck so round and the answer would simply be 214.

5 0

4 years ago

Yep me pls thanks you so much

Makovka662 [10]

Answer:

Step-by-step explanation:

To solve, simply put 4 in place of x. 8 times 4 is 32

3 0

3 years ago

Carol is going to make a wooden pyramid and then paint it. She drew the net of a square pyramid as shown below to help her plan

rodikova [14]

The given pyramid's total surface area is 3. 24.0 square feet.

Step-by-step explanation:

Step 1:

To calculate the surface area of the given figure, we need to find the surface areas of the different shapes in the figure.

There are 3 triangles and 1 square in the figure.

Step 2:

All the triangles are similar.

The surface area of a triangle = $\frac{1}{2} (baselength)(height).$

The similar triangles have a base length of 3 feet and a height of 2.5 feet.

The surface area of 1 similar triangle = $\frac{1}{2} (3)(2.5)= 3.75$ square feet.

The surface area for all the similar triangles = $3.75 (4) = 15$ square feet.

Step 3:

The surface area of a square is the square of its side length. The square has a side length of 3 feet.

The surface area of the square = $a^{2} = 3^{2} =9$ square feet.

Step 4:

To calculate the total surface area we sum up all the individual surface area.

The total surface area = $15 + 9 = 24$ square feet which is the third option.

3 0

3 years ago