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Tems11 [23]
2 years ago
15

598+20+987+78+90+87+80+60+70+90​

Mathematics
1 answer:
aleksklad [387]2 years ago
5 0

Answer:

2,160

Step-by-step explanation:

598 + 20 = 618

618 + 987 = 1,605

1,605 + 78 = 1,683

1,683 + 90 = 1,773

1,773 + 87 = 1,860

1,860 + 80 = 1,940

1,940 + 60 = 2,000

2000 + 70 = 2,070

2070 + 90 = 2,160

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Kayla’s dollhouse has 15.15 square feet downstairs and 6.45 square feet upstairs. What is the estimated total area if you round
Hitman42 [59]

  • The area of Kayla's dollhouse upstairs = 15.15 square feet

  • The area of Kayla's dollhouse downstairs = 6.45 square feet

  • To find the estimated Total area of Kayla's dollhouse, we would apply the Addition Operation

  • The estimated total area is calculated using the formula :

Area of the dollhouse upstairs + Area of the dollhouse downstairs

Rounding to the decimals to the nearest tenth

  • The area of Kayla's dollhouse upstairs to the nearest tenth = 15.2 square feet

  • The area of Kayla's dollhouse downstairs to the nearest tenth = 6.5 square feet

15.2 square feet + 6.5 square feet = 21.7 square feet

The estimated total area of Kayla's dollhouse is  21.7 square feet

To learn more, visit the link below:

brainly.com/question/11118181

8 0
3 years ago
A village fete has a children’s running race each year, run in heats of up to ten children. For each heat the first three contes
bekas [8.4K]

Answer:  1) 1/3,654     2) 3/406     3) 72,684,900,288,000      4) 120

<u>Step-by-step explanation:</u>

1)         First       and        Second         and         Third

  \dfrac{3\ total\ prizes}{29\ total\ people}\times \dfrac{2\ remaining\ prizes}{28\ remaining\ people}\times \dfrac{1\ remaining\ prize}{27\ remaining\ people}=\dfrac{6}{21,924}\\\\\\.\qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \quad =\large\boxed{\dfrac{1}{3,654}}

2)         First       and          Second

   \dfrac{3\ total\ prizes}{29\ total\ people}\times \dfrac{2\ remaining\ prizes}{28\ remaining\ people}=\dfrac{6}{812}=\large\boxed{\dfrac{13}{406}}

3)\quad \dfrac{29!}{(29-10)!}=\large\boxed{72,684,900,288,000}

4)\quad _{10}C_3=\dfrac{10!}{3!(10-3)!}=\large\boxed{120}

8 0
3 years ago
BEST ANSWER GETS BRAINLYEST
denis23 [38]
0.024 is 2.4%
0.125 is 12.5%
0.05 is 5%

Showing the workMultiply 0.05 by 100 to convert to percent:

<span>0.05 × 100 = </span>5 %

0.5 is 50%
Showing the work - Multiply 0.5 by 100 to convert to percent:

0.5 × 100 = 50 %
Showing the work -multiply  0.024 by 100 to convert to percent:

0.024 × 100 = 2.4 %


6 0
3 years ago
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12-5x-4kx=y solve for x
Lana71 [14]
Hi there!

12 - 5x - 4kx = y&#10;&#10;-4kx - 5x = y - 12 &#10;&#10;Factor out variable x &#10;&#10;x(-4k-5)=y-12&#10;&#10;x = (y+12)/(4k+5)
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3 years ago
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Makovka662 [10]

Answer:

1. if x + 5 = 12, then x = 7

:Subtraction property of equality

2. If x + y = 20, and y = 5, then x + 5 = 20.

<u>:Substitution property of equality</u>

3. If 2x3 = 11, then 11 = 2x - 3.

<u>:Symmetric property of equality</u>

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2 years ago
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