2 years ago

Lesson 19 test 7th grade

Mathematics

1 answer:

kolezko [41]2 years ago

3 0

Answer:

What's the question?

Step-by-step explanation:

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In each case, use the digits 1 to 9 at most one time each.

krok68 [10]

Answer:

Hello,

$x^{11} = x^{3} x^{8} = x^{2} x^{4} x^{5}$

8 0

3 years ago

Dakota and Christine went shopping. Dakota bought two scarves and one hat for $13 Christine bought one scarves and two hats for

White raven [17]

One scarf=s
One hat=h

2s+h=13
s+2h=14

h=13-2s
(plug that into the other equation)

s+2(13-2s)=14
s+26-4s=14
26-3s=14
-3s=-12
s=4

One hat=$5
One scarf=$4
5+4=9
Price of one hat AND one scarf is $9

5 0

2 years ago

What is 2 1/3 x 3 4/9

bogdanovich [222]

Answer:

is equal to 8 1/27

Step-by-step explanation:

)(3

)

(

)

217

7 0

2 years ago

Read 2 more answers

Karissa begins to solve the equation (x – 14) + 11 = x – (x – 4). Her work is correct and is shown below. (x – 14) + 11 = x – (x

sdas [7]

Her work is incorrect because she accidentally changed -14 to -7 in the second step.
Working it out from the top we get
(x-14)+11=x-(x-4)
x-14+11=x-x+4
x-3=0+4
Final answer:
x=7
Hope I helped :)

4 0

3 years ago

Read 2 more answers

What number must be added to the expression below to complete the<br> square?<br> x² - 18x

kiruha [24]

Answer:

$\boxed {\boxed {\sf 81}}$