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3 years ago

15

jada earns $7 per hour mowing her neighbors' lawns. andre gets paid $5 per hour for the first hour of babysitting and $8 per hou

r for any additional hours he babysits. what is the number of hours they both can work so that they get paid the same amount?

2 answers:

Harlamova29_29 [7]3 years ago

3 0

jada 2 andre 3 hours

kow [346]3 years ago

3 0

Jada 2 and $3 this is the abeees

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Unghiurile ∢AOB, ∢BOC, ∢COD și ∢DOA sunt unghiuri în jurul punctului O, ∢AOB = 80°, ∢BOC = 140° și CO ⊥ OD.

Sonbull [250]

Answer:

a) ∡AOC = 140 °

∡AOD = 40 °

b) ∡AOB = ∡BOC + ∡AOC și ∡BOC = ∡AOC (unghiuri formate din segmentul OC) prin urmare, segmentul OC bisectează ∡AOB

Step-by-step explanation:

a) Calculați măsurile unghiurilor ∢AOC și ∢AOD.

b) Arătați că jumătatea liniei opuse jumătății liniei OC este bisectoarea unghiului ∢AOB

a) Parametrii dați sunt;

∡AOC. ∡BOC. ∡COD și ∡DOA sunt unghiuri în jurul circumferinței unui cerc

∡AOB = 80 ° și ∡BOC = 140 °, segmentul CO este perpendicular pe segmentul DO

Prin urmare, avem;

∡AOB + ∡BOC + ∡AOC = 360 ° (Suma unghiurilor într-un punct = 360 °)

∴ ∡AOC = 360 ° - (∡AOB + ∡BOC) = 360 ° - (80 ° + 140 °) = 140 °

∡AOC = 140 °

∡BOC + ∡BOD = 180 ° (Suma unghiurilor unui triunghi = 180 °)

∡BOD = 180 ° - ∡BOC = 180 ° - 140 ° = 40 °

∡BOD = 40 °

∡ BOD + ∡AOD = ∡AOB

∡AOD = ∡AOB - ∡BOD = 80 ° - 40 ° = 40 °

∡AOD = 40 °

b) Deoarece avem ∡AOB = ∡BOC + ∡AOC și ∡BOC = ∡AOC = 140 °, avem;

∡AOB = 140 ° + 140 ° = 280 ° = 2 × ∡BOC = 2 × ∡AOC

Prin urmare, segmentul OC bisectează ∡AOB

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3 years ago

A school has 300 students. If the ratio of boys to girls is 31 to 44, how many girls are there in the school?

Shalnov [3]

Answer:

176 girls

Step-by-step explanation:

31+44 = 75

300/75 = 4

4*44 = 176

176 girls in the school

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3 years ago

Order the decimals from least to greatest 48.6, 1.6, 0.13, 153.7, 2.2, 49.2

postnew [5]

Answer:

0.13, 1.6, 2.2, 48.6, 49.2, 153.7

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3 years ago

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A car has four wheels. How many wheels are there for twelve cars?

Kryger [21]

Answer:

4x12=48

Step-by-step explanation:

1 car=4 wheels

12cars= 48 wheels

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2 years ago

Farhan orders one plate of seafood fried rice at a restaurant which offers at 25% discount. the Marked price of the seafood frie

ANTONII [103]

Answer:

The total amount of money he has to pay for the dish is $8.3861.

Step-by-step explanation:

Here, the marked price of the seafood fried rice = $9.50

Now, discount on the marked price = 25%

Calculating 25% of $9.50 = $\frac{25}{100} \times 9.50 = 2.375$

So, the discount offered = $2.375

Now, the Selling Price of dish = Marked Price - Discount

= $9.50 - $2.375 = $7.125

Now, here the service charge applied here = 10%

Calculating 10% of $7.125 = $\frac{10}{100} \times 7.125 = 0.7125$

So, the service charge applied = $0.7125

So, the new Selling Price of dish = Selling Price + Service Charge

= $7.125 + $0.7125 = $7.8375

Again, here the GST applied here = 7%

Calculating 7% of $7.8375 = $\frac{7}{100} \times 7.8375 = 0.5486$

So, the GST applied = $0.5486

So, the new Selling Price of dish = Selling Price + GST

= $7.8375 + $0.5486 = $8.3861

Hence, the total amount of money he has to pay for the dish is $8.3861.

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3 years ago