Answer these?
3. John bought 2 kg apples, 4 kg mangoes, 1 kg pears and put them in his bag. Find the total weight of the fruits in his bag.

4. Three brothers weigh 30 kg, 25 kg and 45 kg. Find their total weight.

5. A man weighs 72 kg and his wife weighs 59 kg. How much does the man weigh more than his wife?

6. Papaya sells at $16 per kg. Find the cost of 4 kg of these papayas.

7. A bag of wheat weighs 25 kg. Find the total weight of 8 such bags.

Step-by-step explanation:

it means the shape of the balloon is close to a sphere.

the volume of a sphere is

4×pi×r³

so, it bases on r³.

that means any scaling factor f between 2 similar balloons for the radius has to be multiplied in 3 times (once for every "r").

in our case we know

8.4 = 2.8 × f

f = 8.4 / 2.8 = 3

so,

large volume = small volume × f×f×f =

= small volume × f³ = 92×3³ = 92×27 =

= 2,484 cm³

Answer:

3. -1/3  ± 2i√5 / 3

Step-by-step explanation:

3x^2 + 2x = -7

Divide through by 3:

x^2 + 2/3 x = -7/3

Completing the square:

x^2 + 2/3 x + (1/3)^2 = -7/3 + (1/3)^2

(x + 1/3)^2 = -7/3 + 1/9

(x + 1/3)^2 = -20/9

x + 1/3 =  ±√(-20) / 3

x + 1/3 = ± 2√-5/3

x  = -1/3  ± 2i√5 / 3

The solutions of the given equation are x = 4 or x = -5.

The solution of a linear equation is defined as the points, in which the lines represent the intersection of two linear equations.

Given is an equation, 3(x – 4)(x + 5) = 0 we need to find the solution of the equation,

So, we can see that the equation is a quadratic equation, so it will have two solutions,

The equation is already in factored form,

So,

3(x – 4)(x + 5) = 0

Solution,

x-4 = 0

x = 4

x+5 = 0

x = -5

Hence, the solutions of the given equation are x = 4 or x = -5.

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Answer:

11/14-2/10=41/70=0.58

Answer:

  see attached

Step-by-step explanation:

The vector difference u -v can be represented on a vector diagram by the sum u +(-v), where -v is a vector the same length as v, but in the opposite direction.

__

This sum is shown in the attachment.

Answer:

To round 376.77 to the nearest dollar consider the tenths’ value of 376.77, which is 7 and equal or more than 5. Therefore, we have to round the amount up: the dollar part of 376.77, 376, increases by 1 to 377, and the decimal point and all digits (.77) are removed.

Step-by-step explanation:

Answer:

1,080 square inches

Step-by-step explanation:

27 inches * 40 inches = 1,080 square inches

Answer:

Step-by-step explanation:

Number : 2 Cost : $10

Number : 3 Cost : $15

Number : 7 Cost : $28

⇒ The cost is not always the same per person.

⇒ Predicted number in a group for cost of $40 :

⇒ Since 7 costs $28 and if we use 8, it will be $5 per head but the price difference will be too large

⇒ 10 people is more reasonable at a rate of $4 per person

Answer:

41

Step-by-step explanation:

(3*7)+(4*10)/2

(21)+(40)/2

Bidmas means you do 40/2 first

21+20=41

Answer:

Each pencil costs 50 cents

Step-by-step explanation:

Step 1:  Determine the price per unit

(Price of Items) / (Amount of items)

($3) / (6)

$0.5

Answer:  Each pencil costs 50 cents

Answer:

The answer is 12

Step-by-step explanation:

Answer: 12

Step-by-step explanation:

Option B will be the best option.

Answer:

[tex] \: [/tex]

Step-by-step explanation:

It is given that, The circumference of a circle is 198 cm and we are to find the radius of the circle.

[tex] \: [/tex]

To find the radius of the circle we must know this formula first :

[tex]\\{ \longrightarrow \qquad{ \underline {\boxed{ \pmb{ \mathfrak{ \: 2 \pi r \: =Circumference_{(circle)}}}}}}} \: \: \bigstar \\ \\ [/tex]

Now substituting the values in the formula :

[tex]\\{ \longrightarrow \qquad{ {{ \tt{ \: 2 \times 3.14 \times r \: =198}}}}} \\ \\ [/tex]

[tex]{ \longrightarrow \qquad{ {{ \tt{ \: 6.28 \times r \: =198}}}}} \\ \\ [/tex]

[tex]{ \longrightarrow \qquad{ {{ \tt{ r \: = \frac{198}{6.28} }}}}} \\ \\ [/tex]

[tex]{ \longrightarrow \qquad{ \pmb {{ \frak{ r \: = 31.528 }}}}} \\ \\ [/tex]

Therefore,

Answer:

The decimal stays in the same place and the answer is 0.186

Step-by-step explanation:

Answer:

C.4400

Step-by-step explanation:

The formula to convert Fahrenheit to Celsius (or Vice Versa) is,

F

=

(

9

C

5

)

+

32

Here C is the Temperature in Celsius Degrees and F is temperature in Fahrenheit Degrees.

Time for substitution

( 9C)

40 = ______ +32

5

I have put 40 instead of F because the value I have in hand is temperature in Farhenheit.

=> (40 -32) 5

________ = C

9

Then take all the constant term to one side and keep the variable on other side.

C = 4.4444444

C = 4400

Since  the resulting function has a leading degree of 1, hence the set or ordered pairs (1,6), (2,9), (3,12), (4,15) satisfies a linear function

The standard equation of a linear function is y = mx + b

where:

m is the slopee

b is the y-intercept

Using the coordinate point (1, 6) and (2, 9)

Find the slope

Slope = 9-6/2-1
Slope = 3/1

Slope = 3

For the y-intercept

Recall that y = mx + b

9 = 3(2) + b

b = 3

Determine the equation

y = 3x + 3

Since the resulting function has a leading degree of 1, hence the set or ordered pairs (1,6), (2,9), (3,12), (4,15) satisfies a linear function.

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Answer:

b) 70.6

Step-by-step explanation:

To calculate average you need to add up all the numbers and divide by the quantity of numbers. They are calculating with mph, with ten hours, so there will be ten numbers. First you do 73 x 6 (6 because of 6 hours of 73 mph) which is 438. Then you do 67 x 4 which is 268. you add it up, then find a total of 706. Then you divide it by ten to find the answer 70.6

Answer:

Lower Left!!

Step-by-step explanation:

Because Gina doesn't have the total price, that makes it the unknown or "?" answer, with the price before tax obviously $300.00, and the tax being 8%. Therefore, it's the lower left option.

Answer:

c)20 1/4

Step-by-step explanation:

[tex]9x^{2}y^{-2}[/tex]

If We replace x by -3 and y by 2 we get  :

[tex]9\left( -3\right)^{2} \left( 2\right)^{-2}[/tex]

Or we have :

[tex]\left( -3\right)^{2} =9\ \text{and} \ \left( 2\right)^{-2} =\frac{1}{2^{2}} =\frac{1}{4}[/tex]

then

[tex]9\left( -3\right)^{2} \left( 2\right)^{-2}=9\times9\times\frac{1}{4} = \frac{81}{4}[/tex]

on the other hand :

[tex]\frac{81}{4} =\frac{80+1}{4} =\frac{80}{4} +\frac{1}{4} =20+\frac{1}{4}=20\frac{1}{4}[/tex]

Answer:

he gained 188 kobo for selling 200 oranges or 192 if the trader selled the oranges for 8 kobo

Step-by-step explanation:

Answer:

6a + 6b

Step-by-step explanation:

Use  Distributive property: a( b +c) =(a *b) +(a*c)

6(a + b) = 6*a + 6*b

            = 6a+ 6b

Answer:

Step-by-step explanation:

Remark

Make a very crude diagram of what these points look like. You will find that

That gives you a hint about how to find the Length and width.

Givens

From (-8,-3) and (-3, 3) L = -8 - -3 = - 5

From (-8,6) and  (-8,3) w = 6 - 3 = 3

Solution

The length cannot be minus 5. The way to get around that is to call it and absolute value of (-5) which is 5

So the area = L*W

area = 5 *3

area = 15

Answer

Area = 15

The coordinates of the final vertices of the two transformations are W" = (-4,1), X" = (-2,1), Y" = (-2,4) and Z" = (-3,2)

The coordinates of the polygon WXYZ are:

W = (-4,-1)

X = (-2,-1)

Y = (-2,-4)

Z = (-3,-2)

When reflected across the y-axis, the rule of transformation is:

(x,y) -> (-x,y)

So, we have:

W' = (4,-1)

X' = (2,-1)

Y' = (2,-4)

Z' = (3,-2)

When rotated by 180 degrees, the rule of transformation is:

(x,y) -> (-x,-y)

So, we have:

W" = (-4,1)

X" = (-2,1)

Y" = (-2,4)

Z" = (-3,2)

Hence, the coordinates of the final vertices of the two transformations are W" = (-4,1), X" = (-2,1), Y" = (-2,4) and Z" = (-3,2)

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Answer:

first one is correct second one is 6 and third one is 2 and a half

Answer:

If one counts the blocks on the graph from the school to the stadium and back, there are three blocks one way and three blocks going back.

Altogether 6 blocks.

If Catelyn lives halfway between the park and the school, the amount of blocks is 5.

She lives halfway between.  Hence, what is 5 divided by 2?

2.5 or 2 1/2 blocks.

Step-by-step explanation:

Answer:

10 apples

Step-by-step explanation:

Answer:

i believe it's (1,-8)

Step-by-step explanation:

you subtract the "+3," since it's really the opposite, from 4 to get 1. The -8 stays the same since the transformation doesn't affect the y's.