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3 years ago

Help me with Part B. ASAP!!!

Mathematics

1 answer:

Sidana [21]3 years ago

6 0

I think the answer of part B is 1

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Anna finishes 5 homework problems in 15 minutes. Kailey finishes 10

Kryger [21]

Answer:

no, they are not working at the same rate.

Step-by-step explanation:

Annah takes only 3 minutes to complete 1 homework while Kailey takes 6 minutes to complete 1 homework

3 0

3 years ago

Read 2 more answers

In DEF the measure of D is equal to 5 degrees more than the measure of E. The sum of the measures of D and E is 10 degrees more

Gelneren [198K]

Answer: Measure of angle E = 45°

Measure of angle D = 45°+5° = 50°

Measure of angle F = 85°

Step-by-step explanation:

Let the measure of angle E be x. ( in degrees)

Then Measure of angle D = x+5

Also, Angle D + Angle E = Angle F +10

$\Rightarrow\ x+5+x =\text{Angle F}+10\\\\\Rightarrow\ \text{Angle F} = 2x+5-10\\\\\Rightarrow\ \text{Angle F} = 2x-5$

Since DEF is a triangle, so the sum of their angles should equal to 180 degrees.

$\Rightarrow\ x+x+5+2x-5=180\\\\\Rightarrow\ 4x=180\\\\\Rightarrow\ x=45$

Measure of angle E = 45°

Measure of angle D = 45°+5° = 50°

Measure of angle F = (2(45)-5)° = (90-5)° = 85°

5 0

3 years ago

8 is 15% of what number

padilas [110]

(x (15))/100 = 8
x(15) = 800
x = 800/15 = 53,3333 ( just take 53 )

5 0

3 years ago

Estimate what 32% of 647 is

I am Lyosha [343]

Answer:

189

Step-by-step explanation:

32% is rounded to 30. And 647 is rounded to 630. 30% times 630 is 189.

3 0

3 years ago

How do you solve <br><br> -3(1+6r)=14-r

never [62]

Answer:

r = (-1)

Step-by-step explanation:

Firstly simplify the brackets,

; -3(1 + 6r) = -3 - 18r

then substitute on the bracket with the simplified form,

; -3 - 18r = 14 - r

then move the values with (r) to one side and the other ones without (r) to the other side

; -3 - 14 = 18r - r

; -17 = 17r

then divide both sides by 17,

; -1 = r

Hence...r = -1

7 0

3 years ago