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Pavlova-9 [17]
3 years ago
6

-3/5 x = 18 what is x

Mathematics
2 answers:
stira [4]3 years ago
5 0
X = -30
Multiply on both sides
3x=-90
Divide by 3 then get -30
Liono4ka [1.6K]3 years ago
4 0
My guess would be x = -30

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Please help!! I have less than an hour to turn this in!
valentinak56 [21]

Answer:

8 × 10¹

Step-by-step explanation:

don't panic. just breathe deeply and then think logically.

0.002 ... what is that ? 2 10ths ? 2 hundredths ? 2 thousandths ? 2 tenthousandths ?

the 3rd position after the decimal point is for 1/1000.

and that means 10^-3. in the same way as 1000 is 10³.

so, it is 2 × 10^-3.

the other rounded number is then 4 × 10⁴.

now, we are multiplying both numbers

2×10^-3 × 4×10⁴

what do we do ?

we combine the same types of factors, like the basic constants : 2×4 = 8

and 10^-3 × 10⁴.

what hairball when we multiply the same base number with exponents ? we add the exponents :

10^-3 × 10⁴ = 10¹ = 10

because -3 + 4 = 1

and so, the result is

8 × 10¹

7 0
2 years ago
Find three consecutive odd integers such that three times the square of the first integer is twelve more than the product of the
7nadin3 [17]
Consecutive odd integers are 2 apart
they are
n,n+2,n+4


3(n²)=12+(n+2)(n+4)
expand
3n²=12+n²+6n+8
3n²=n²+6n+20
minus n² both sides
2n²=6n+20
divide bot sides by 2
n²=3n+10
minus 3n+10 both sides
n²-3n-10=0
factor
(n-5)(n+2)=0
n-5=0
n=5

n+2=0
n=-2
has to be odd, so no


n=5
n+2=7
n+4=9


the integers are 5,7,9
4 0
3 years ago
A store buys an item for $45.00 and then adds a 100% markup to the price. How much will the item sell for in the store?
Effectus [21]

Answer:

Step-by-step explanation:

THe price would be $90

8 0
3 years ago
The original value of a car Is $15,000 and it depreciates (loses value) by 20% each year what is the value of the car after thre
Sergeeva-Olga [200]
This is an exponential decay function of the form:

y=ab^x, In this case:

y=15000(0.8^t)  so for t=3

y=15000(0.8^3)

y=$7680
7 0
3 years ago
Read 2 more answers
Help I’ll give you Brainleiest
yan [13]

Answer:

<em>6 cm </em>

Step-by-step explanation:

<u><em>I don't know may I use the trigonometry functions, therefor I'm going to use Pythagorean theorem and property of 30°-60°-90° triangle.</em></u>

m∠ACB = 120° ⇒ m∠ACD = 60° ⇒ m∠DAC = 30°

DC is opposite to 30° angle ⇒ AC = CB = 8 cm

From ΔADC: AD² = 64 - 16 = 48 ; AD = 4√3 cm

ΔACB is isosceles ⇒ m∠CAB = m∠CBA = 30°

m∠DAH = m∠DAC + m∠CBA = 2(30°) = 60° ⇒ m∠ADH = 30° ⇒ AH = 4√3 ÷ 2 = 2√3 cm

From ΔADH: <em>DH</em> = \sqrt{48-12} = √36 = <em>6 cm</em>

6 0
3 years ago
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