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3 years ago

Solve the equation 90= -20x Plz help

Mathematics

2 answers:

I am Lyosha [343]3 years ago

4 0

Answer:

x = -4.5

Step-by-step explanation:

90 = -20x

-90 = 20x

-90/20 = x

x = -4.5

Leave a like and mark brainliest if this helped

Brut [27]3 years ago

3 0

Answer:

-9/2

Step-by-step explanation:

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The cost of a jacket increased from $65.00 to $74.10. What is the percentage increase of the cost of the jacket?

Andreas93 [3]

Answer:

14%

Step-by-step explanation:

14% of 65 is 9.1. so 65+9.1= 74.10

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2 years ago

Round to the nearest tenth Pythagorean Theorem

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3 years ago

Plz help I'm really bad at these

GREYUIT [131]

Y = mx + b, where m = slope = rise/run and b, the y intercept value

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3 years ago

A coin is tossed 600times with the frequencies as:

brilliants [131]

Answer:

see below

Step-by-step explanation:

Total number of trials =600.

Number of heads = 342.

Number of tails = 258

On tossing a coin,

$let \: E_1 \: and \: E_2 \: be \: the \: events \: of \: getting \: a \: head$

and of getting a tail respectively.

then,

$1) \: P \: (getting \: a \: head) = \: P \: (E_1)$

$\longrightarrow \: \frac{number \: of \: heads \: coming \: up}{total \: number \: of \: trials}$

$\longrightarrow \: \frac{342}{600} = \frac{57}{100}$

$\longrightarrow \: 0.57$

$\red{ \rule{150pt}{3pt}} \:$

$2) P (getting \: a\: tail) =P (E_2)$

$\longrightarrow \: \frac{number \: of \: tails \: coming \: up}{total \: number \: of \: trials}$

$\longrightarrow \: \frac{258}{600} = \frac{43}{100}$

$\longrightarrow \: 0.43$

6 0

2 years ago

When rolling two dice, Which probability has the same number of chances as rolling a P(1)?

Harman [31]

Answer:

$\frac{1}{6})$

Step-by-step explanation:

probability= <u>no of possible outcom</u><u>e</u>

total outcome

therefore p(1)=

$\frac{2}{12}$

N. B, a dice has 6faces so 2dice has 12 faces

3 0

2 years ago