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3 years ago

Please help me (math) thank you so much!!

Mathematics

2 answers:

Reptile [31]3 years ago

4 0

Answer:

Step-by-step explanation:

olasank [31]3 years ago

3 0

Answer:

Step-by-step explanation:

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-2-(-9) plz show work

neonofarm [45]

Answer:

$- 2 - (- 9) \\ = > - 2 + 9 \\ = > \: \: 7$

hope that helps uhh!!

8 0

3 years ago

Read 2 more answers

Solve the simultaneous equations 4x + 3y = 20 4x + 2y = 14

fiasKO [112]

Step-by-step explanation:

$\underline{ \underline{ \text{Given}}} :$

$\tt{4x + 3y = 20........... \text{ equation \: ( \: i \: )}}$
$\tt{4x + 2y = 14.......... \text{equation \: (ii)}}$

$\underline{ \text{USE \: ELIMINATION \: METHOD}} :$

Subtract equation ( ii ) from equation ( i ) :

Remember that the sign of each term of the second expression changes i.e equation ( i ) now becomes -4x -3y = -20

$\tt{ \cancel{4x }+ 2y = 14}$

$\tt{ \cancel{ - 4x} - 3y = - 20}$

__________________

$\tt{ - y = - 6}$

⟿ $\tt{ \boxed{ \tt{y = 6}}}$

Again , Substituting the value of y in equation ( ii ) :

⟿ $\tt{4x + 2 \times 6 = 14}$

⟿ $\tt{4x + 12 = 14}$

⟿ $\tt{4x = 2}$

⟿ $\boxed{ \tt{x = \frac{1}{2}}}$

$\red{ \boxed{ \boxed{ \tt{Our \: final \: answer : x = \frac{1}{2 } \: and \: y = 6}}}}$

Hope I helped ! ツ

Have a wonderful day / night ! ♡

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8 0

3 years ago

When trying to find the probability of drawing a violet marble from a jar containing 9 red, 4 brown, 10 yellow, and 8 violet mar

zheka24 [161]

There are 8 possible desired outcomes.

This would be represented as a probability of 8/31.

5 0

4 years ago

Read 2 more answers

Which of the lines below has a negative slope?

aleksandrvk [35]

Well, negative slope has the word negative in it right? So, it will be the negative number. Answer: -5 (negative 5)

6 0

3 years ago

bills normal temperature is 98.6 today ballistic and has a temperature of 104.3 how many degrees above his normal temperature is

kkurt [141]

Answer:

Today's temperature is 5.7 degrees above Bill's normal temperature.

Step-by-step explanation:

Given

Represent the normal temperature with N and today's temperature with T.

Such that:

$N = 98.6$

$T = 104.3$

Required

Determine the temperature above the normal temperature

The interpretation of this is to calculate the difference between Bill's normal temperature and Bill's today temperature.

Represent the difference with D

D is calculated as follows:

$D = T - N$

Substitute values for T and N

$D = 104.3 - 98.6$

$D = 5.7$

Hence, today's temperature is 5.7 degrees above Bill's normal temperature.

4 0

3 years ago