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3 years ago

I need help please thank you

Mathematics

2 answers:

Mama L [17]3 years ago

4 0

Answer:

The correct answer is x = -4

Step-by-step explanation:

Step 1: 8x + 1 = -31 <----- This is the original equation.

Step 2: 8x + 1 - 1 = -31 - 1 <----- Subtract 1 from both sides.

Step 3: 8x = -32 <----- Simplify

Step 4: 8x/8 = -32/8

 x = -4

Hope this helps! :D

adelina 88 [10]3 years ago

3 0

X = -4
double check by replacing x with -4

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tamaranim1 [39]

Answer:

Step-by-step explanation:

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3 years ago

At a picnic, hamburgers and hotdogs were consumed in the ratio 7 to 4. If 41 hamburgers were consumed, how many hot dogs were co

GrogVix [38]

The answer should be 19

8 0

3 years ago

What is 34 + 56 x 34 and have a great day ?

Kruka [31]

Answer:

1938

Step-by-step explanation:

For this, you will need to use order of operations. You would need to multiply 56 and 34 to get 1904 first, because multiplication comes before addition.

Remember to use PEMDAS.

3 0

3 years ago

Read 2 more answers

Please help, I need input on if I did this correctly and you just substitute.

kow [346]

The value of h(t) when $t=\frac{15}{32}$ is 10.02.

Solution:

Given function $h(t)=-16t^2+15t+6.5$

To find the value of h(t) when $t=\frac{15}{32}$ :

$h(t)=-16t^2+15t+6.5$

Substitute $t=\frac{15}{32}$ in the given function.

$$h\left(\frac{15}{32} \right)=-16\left(\frac{15}{32} \right)^2+15\left(\frac{15}{32} \right)+6.5$

$$=-16\left(\frac{225}{1024} \right)+15\left(\frac{15}{32} \right)+6.5$

Now multiply the common terms into inside the bracket.

$$=-\left(\frac{3600}{1024} \right)+\left(\frac{225}{32} \right)+6.5$

Now, in the first term, the numerator and denominator both have common factor 16. So reduce the first term into the lowest term.

$$=-\left(\frac{225}{64} \right)+\left(\frac{225}{32} \right)+6.5$

To make the denominator same, take LCM of the denominators.

LCM of 64 and 32 = 64

$$=-\left(\frac{225}{64} \right)+\left(\frac{225\times2}{32\times2} \right)+6.5\times\frac{64}{64}$

$$=-\frac{225}{64} +\frac{450}{64}+\frac{416}{64}$

$$=\frac{-225+450+416}{64}$

$$=\frac{641}{64}$

= 10.02

$$h\left(\frac{15}{32} \right)=10.02$

Hence the value of h(t) when $t=\frac{15}{32}$ is 10.02.

8 0

3 years ago

A loaf of bread that is baked today costs $7. All of the bread baked yesterday is 40% off.

vovikov84 [41]

Answer:

The price of today's bread is $7.

40% of $7 is $2.80.

The price of yesterdays bread is $7-$2.80.

7-2.80=4.20

The price of yesterday's bread is $4.20

Tobin has enough money to purchase a loaf of yesterday's bread.

Hope this helps!

4 0

3 years ago