Mathematics, 18.10.2020 09:01, jhgfd1170
PL HELPPPS ASA
Dan earns $42.75 per month working as a tutor. He worked as a tutor for 4 months. He also earned $52.45 walking dogs in the neighborhood. He spent $18.50 of his total earning to buy a movie ticket and candy. Dan put 1 over 3 of the remaining money in his savings account.
Dan used the following steps to find the total money he put in his savings account:
Step 1: [($42.75 β
4) + $52.45 β $18.50] β
1 over 3
Step 2: [$171 + $52.45 β $18.50] β
1 over 3
Step 3: 241.95 β
1 over 3
Step 4: $80.65
In which step did Dan first make an error? Use words to explain how Dan can correct his error.
Answers: 3
Mathematics, 21.06.2019 14:00, Laocean9281
With #! iβve tried to figure it out but i canβt.
Answers: 2
Mathematics, 21.06.2019 15:20, alaina3792
Which equation represents a circle with a center at (β3, β5) and a radius of 6 units? (x β 3)2 + (y β 5)2 = 6 (x β 3)2 + (y β 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36
Answers: 3
Mathematics, 22.06.2019 00:00, xXwolfieplayzXx
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
PL HELPPPS ASA
Dan earns $42.75 per month working as a tutor. He worked as a tutor for 4 months. He...
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