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aleksklad [387]
3 years ago
7

What is the solution to -7=-(x-5)

Mathematics
1 answer:
saul85 [17]3 years ago
8 0

-7= -(x-5)

Step 1: Distribute the secret -1 behind the parentheses so -1(x-5) is -1x+5

Step 2:-7= -1x+5 Subtract 5 from both sides --> -12=-1x

Step 3: Divide both sides by -1 so -12/-1 and -1x/-1

x=12

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One serving of soybeans contains 14 grams of protein and 8 grams of fat. One serving of rice contains 4 grams of protein and 1/2
mina [271]

Answer: 1.8 servings of soybean and 1.2 servings rice will be needed.

Step-by-step explanation:

Let x be the number of soybeans and y be the number of rice.

Then , According to the question , we have

14x+4y=30\\\Rightarrow\ 7x+2y=15..................................(1)\\\\ 8x+\frac{1}{2}y = 15\\\Rightarrow\ 16x+y=30.............................(2)

Multiply 2 on both the sides of equation (2), we get

32x+2y=60................................(3)

Subtract equation (2) from equation (3), we get

25x=45\\\\\Rightarrow\ x=1.8

Put x = 1.8 in equation (2), we get

16x+y=30\\\\\Rightarrow\ y=30-16x\\=30-16(1.8)=1.2

Hence, 1.8 servings of soybean and 1.2 servings rice will be needed.

8 0
4 years ago
A deck of 14 cards numbered 1 through 14 is dealt to Ken and Gunther so that each gets 7 cards. Each player's score is the sum o
aliya0001 [1]

Answer:

The different winning scores possible are 25 (from 28 to 52).

Step-by-step explanation:

  • The minimum score obtained by a player will be 28.

since, we divide 1-7 numbered to one and 8-14 to the other player such that    one receives the maximum and the other receives the minimum.

 the least minimum possibility is :28 as one get the card as(1,2,3,4,5,6,7).

while the other player gets 77 sum and loses.

  • for increasing this score now we give the number 1,2,3,4,5,6,8 to one of the player so that they sum upto 29 and will get the minimum score and wins while the other player gets 76 sum with the help of numbers{9,10,11,12,13,14,7} and loses.
  •    next possible minimum sum to win will be 30 by assigning 1,2,3,4,5,6,9 whereas the other gets the sum 75 and loses.
  • continuing in the same way we see that the minimum sum obtained to win will be 52( by assigning 2,3,6,7,9,12,13) while the other gets the sum 53 and loses.

    Hence, there are total 25 winning scores possible.  (from 28 to 52 i.e. 52-28=25).




4 0
3 years ago
35xy/7y simplified plz just simple fied it ;-; rip me i hate math mevr udnerstood it
ch4aika [34]
Its 7xy/1y I understand it its pretty easy
5 0
3 years ago
HOW TO DO THIS QUESTION PLEASE ​
Doss [256]

9514 1404 393

Answer:

  £6/h

Step-by-step explanation:

Molly is paid £280 for 35 hours' work, so

  £280/(35 h) = £8/h

In the next 5 hours, her pay jumps to £350, so she earns at a rate of ...

  (£350 -280)/(5 h) = £70/(5 h) = £14/h

The difference in her pay rates is £14/h -£8/h = £6 per hour.

8 0
3 years ago
****Hurry & Pleaseee Help****
kobusy [5.1K]
Xintercept is where the line crosses the x axis or where y=0
yintercept is where the line crosses the y axis or where x=0
aka
finding the finding the x intercept is finding the x value when y=0
finding the finding the y intercept is finding the y value when x=0

y=-1/2x-5
xint
y=0
0=-1/2x-5
5=-1/2x
-10=x
(-10,0) is x intercpet

yint
set x=0
y=-1/2(0)=5
y=-5
(0,-5) is yint



xint: x=-10 or at point (-10,0)
yint: y=-5, or at point (0,-5)
8 0
3 years ago
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