MATHEMATICS MIDDLE SCHOOL

Write the expression for the following the product of five and two ,added to seven. PLS HELP ME

Answers

Answer 1

Answer:

Answer:

5 times 2 + 7

Step-by-step explanation:

Answer 2

Answer:

Answer:

5*2+7

Step-by-step explanation:

i believe thats it

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John is twice as old as her sister Jane. Four years ago, John was three times as old.What is John’s current age?

Answers

$x-Jane\n2x-John\n\nx-4-Jane\ (4\ years\ ago)\n2x-4-John\ (4\ years\ ago)\n\n2x-4=3(x-4)\n2x-4=3x-12\ \ \ /+4\n2x-4+4=3x-12+4\n2x=3x-8\ \ \ /-3x\n2x-3x=3x-3x-8\n-x=-8\ \ \ /\cdot(-1)\nx=8\n\n2x=2\cdot8=16\n\n\nAnswer:John's\ current\ age\ is\ 16\ years.$

Another word problem. Please show how you get the answer. A particular number was divided by 5 and then 12 was taken from that quotient. Finally, this difference was multiplied by 5. Given the product was -55, what was the number?

Answers

The number would be 5. 5 divided by 5 equals 1. Then 1-12 would be -11 and then you do -11 times 5 which gives you -55!

What is the surface area of the composite figure? (Use 3.14 for π .)

Answers

so, the Area of a sphere is going be = 4πr2 the area of a cylinder will be 2πr(h+r)

so your total area will be half of the sphere's total area that is 4πr^2/2⟹2π8^2 PLUS the cylinder's 2π8(7+8)

2π82+2π(8)(7)+π82

I hope i help

Cos^2a=cos^2a-sin^2a for all values of a.

Answers

Step-by-step explanation:

$cos2a=cos^2a-sin^2a$

Lets derive this equation,

we can write ,

$cos2a= cos(a+a)$

going by the identity,

$cos(a+b)= cosa cosb - sina sinb$

using the identity ,

$cos(a+a)= cosacosa-sinasina$ .................(1)

After simplification of equation no.1 we get -

$cos(2a)=cos^2a-sin^2a$ ............... (for any value of a)

Hence the equation is proved for every value of a.

Answer:

its true besties

Step-by-step explanation:

just got it correct on apx

Answer all of these please!!!!

Answers

For all these problems do 60÷8. For that you would get 7 with a remainder of 4. For number 1 you need to take that remainder and make it into a fraction so it would be
$7(1)/(2 )$
For number 2 the person wont have enough for all of the bracelets so you take the remainder and X it out. That answer would be
$7$
For number 3 the person wouldn't have enough to fit all of the beads in each container so she needs one more. Therefore, the answer would be
$8$
And for the last question she gives 7 stickers to each friend. After that she still has 4 left over stickers and they have to go to her sister. Therefore, the answer would be

4

How many times can 14 go into 98

Answers

another way to do the math is start by adding 2 after 14 also adding starting from 14 and adding untill u get to 98 easiest way is to use a chart with all your numbers hope this helps

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Please answer in a step by step explanation

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