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3 years ago

Dan invests £800 into his bank account.

Mathematics

2 answers:

sleet_krkn [62]3 years ago

4 0

Answer:

p=£800

r=5%

t=3years

Step-by-step explanation:

simple interest=ptr/100=£800×5×3/100=£120

Mandarinka [93]3 years ago

3 0

Answer:

sorry dont know answer :C

Step-by-step explanation:

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What’s the domain and range

Softa [21]

Answer:

domain is x range is y

Step-by-step explanation:

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3 years ago

Add. (3b + 5) + (2b + 4)

zaharov [31]

Answer:

$\huge{ \fbox{ \sf{5b + 9}}}$

Step-by-step explanation:

$\star{ \text{( \: 3b + 5) + (2b + 4)}}$

$\text{Step \: 1 \: : \sf{Remove \: the \: unnecessary \: parentheses}}$

$\text{When \: there \: is \: a \: ( + ) \: in \: front \: of \: an \: expression \: in \: parentheses \:, there \: is \: no \: need \: to \: change \: the \: sign \: of \: each \: term \: in \: the \: expression.}$

$\text{That \: means, \: the \: expression \: remains \: the \: same. \: Just \: you \: have \: to \: remove \: the \: parentheses.}$

$\mapsto{ \sf{3b + 5 + 2b + 4}}$

$\text{Step \: 2 \: : Collect \: like \: terms.}$

$\text{Like \: terms \: are \: those \: which \: have \: the \: same \: base.}$

$\mapsto{ \sf{3b + 2b + 5 + 4}}$

$\mapsto{ \sf{5b + 5 + 4}}$

$\text{ Step \: 3 \: : \sf{Add \: the \: numbers : 5 \: and \: 4}}$

$\mapsto{ \boxed {\sf{ {5b + 9}}}}$

Hope I helped!

Best regards! :D

~ $\sf{TheAnimeGirl}$

4 0

3 years ago

Can you write a 5 sentence summary about the substitution method?

MAXImum [283]

Answer:

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

Step-by-step explanation:

6 0

3 years ago

A+b+c=31 2a+3b+4c=105 who's a,b,c

Alik [6]

Answer:

begin{aligned}

& x = \frac{D_x}{D} = \frac{-616}{-154} = 4 \\

& y = \frac{D_y}{D} = \frac{ 616}{-154} = -4 \\

& z = \frac{D_z}{D} = \frac{-770}{-154} = 5

\end{aligned} $begin{aligned} & x = \frac{D_x}{D} = \frac{-616}{-154} = 4 \\ & y = \frac{D_y}{D} = \frac{ 616}{-154} = -4 \\ & z = \frac{D_z}{D} = \frac{-770}{-154} = 5 \end{aligned}$

Step-by-step explanation:

4 0

4 years ago

What percent is 93 out of 930?

joja [24]

Answer:

1/10

Step-by-step explanation:

93÷93 930÷93

=1/10

6 0

3 years ago