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3 years ago

Perbandingan kelereng Faiz dan Bayu 4 : 11. Jumlah kelereng mereka 60 buah. Selisih kelereng keduanya adalah

Mathematics

1 answer:

stepladder [879]3 years ago

3 0

Answer:

Perbedaan jumlah kelereng atau 28 kelereng

Step-by-step explanation:

Dalam pertanyaan ini, kami memiliki dua orang yang memiliki jumlah kelereng yang berbeda. Kita tidak tahu jumlah masing-masing individu tetapi kita tahu rasio dan total. kami bertugas menemukan perbedaan jumlah kelereng yang dimiliki oleh masing-masing individu.

Untuk melakukan ini, pertama-tama kita tambahkan rasio mereka.

Ini memberi 4 + 11 = 15

Mari kita hitung pembagian Faiz, yaitu 4/15 * 60 = 16 kelereng

Bayu share adalah 11/15 * 60 = 44 kelereng.

Kami sekarang melanjutkan untuk menemukan perbedaan dalam jumlah kelereng yang dimiliki oleh keduanya.

Itu akan menjadi 44-16 = 28 kelereng

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Find the surface area of the right prism. Round to the nearest whole number.

andriy [413]

Answer:

$\large\boxed{S.A.=96\ cm^2}$

Step-by-step explanation:

We have:

(1) two trapezoids with bases b₁ = 7cm and b₂ = 5cm and the height h = 4cm

(2) three rectangles 3 cm × 7 cm, 3 cm × 4 cm and 3 cm × 5 cm.

The formula of an area of a trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

Substitute:

$A=\dfrac{7+5}{2}\cdot4=24\ cm^2$

Calculate the areas of the rectangles:

$A_1=(3)(7)=21\ cm^2\\\\A_2=(3)(4)=12\ cm^2\\\\A_3=(3)(5)=15\ cm^2$

The Surface Area:

$S.A.=(2)(24)+21+12+15=96\ cm^2$

5 0

3 years ago

Choose the correct formula to find the area of the oblique ABC shown below. Select all that apply. Select ALL TRUE statements.

serious [3.7K]

These two are true:
<span>Area of ABC = a × b × sinC
Area of ABC = × c × b × sinA

</span>

7 0

3 years ago

Read 2 more answers

Round 6.75 to the nearest hour

Ronch [10]

Answer:

6.75 hour is approximated to 7 hours

Step-by-step explanation:

Given

Time = 6.75 hours

Required

Round to the nearest hour

The time given is given in base 10 and the conversion can be done in two ways.

1. Convert directly by approximation.

Approximating 6.75 to the nearest whole number gives 7.

Hence, 6.75 hours = 7 hours

2. Convert to time equivalent then approximate time

This is done as follows

$6.75 hours = 6 hours + 0.75 hour$

Convert decimal to fraction

$6.75 hours = 6 hours + \frac{75}{100} hour$

Simplify to lowest term

$6.75 hours = 6 hours + \frac{3}{4} hour$

Convert hour to minute

There are 60 minutes in an hour

$6.75 hours = 6 hours + \frac{3}{4} * 60 minutes$

$6.75 hours = 6 hours + 3 * 15 minutes$

$6.75 hours = 6 hours + 45 minutes$

The rule of time approximation is that; if the minutes is between 0 and 29, it'll be rounded to 0; else, it'll be rounded up to 1

Going by the rule, 45 minutes will be approximated to 1 hour.

This gives

$6.75 hours \frac{=}{} 6 hours + 1 hour$

$6.75 hour \frac{=}{} 7 hours$

Hence, 6.75 hour is approximated to 7 hours

6 0

3 years ago

A company rents out 15 food booths and 25 game booths at the county fair. The fee for a food booth is $100 plus $3 per day. The

mash [69]

Answer:

2,750+170d

Step-by-step explanation:

Calculation to Enter and simplify an expression for the amount in dollars that the company is paid

First step

Let d represent numbers of day

15(100+3d)

Second step is the Expression for the food booths

25(50+5d)

Third step is Expression for the game booths

15(100+3d)+25(50+5d)

Fourth step is the Expression for both game and food booths

15*100+15*3d+25*50+25*5d

=1,500+45d+1,250+125d

Fifth step is to make use of distributive Property

1,500+1,250+45d+125d

Last step is to make use of cumulative property

(1,500+1,250)+(45d+125d)

=2,750+170d (combine like terms)

Therefore expression for the amount in dollars that the company is paid is 2,750+170d

6 0

3 years ago

Amy's mother is 4 times as old as Amy is now. In 4 years, Amy's mother will be 3 times as old as amy will be then. How old is Am

Ierofanga [76]

Amy mother when Amy born would be I think 16

7 0

3 years ago